National Wetland Plant List (NWPL) for the Arid West - U.S. Army

ARID WEST FINAL DRAFT RATINGS<br />

US ARMY CORPS OF ENGINEERS, COLD REGIONS RESEARCH AND ENGINEERING LABORATORY (CRREL)<br />

Scientific Name Authorship Draft Final Common Name<br />

Abies amabilis (Dougl. ex Loud.) Dougl. ex Forbes FACU Pacific Silver Fir<br />

Abies bifolia A. Murr. FACU Rocky Mountain Alpine Fir<br />

Abies grandis (Dougl. ex D. Don) Lindl. FACU Grand Fir<br />

Abies lasiocarpa (Hook.) Nutt. FACU Subalpine Fir<br />

Acacia farnesiana (L.) Willd. FACU Mealy Wattle<br />

Acacia greggii Gray FACU Long‐Flower Catclaw<br />

Acanthomintha ilicifolia (Gray) Gray FAC San Diego Thorn‐Mint<br />

Acer circinatum Pursh FAC Vine Maple<br />

Acer glabrum Torr. FAC Rocky Mountain Maple<br />

Acer grandidentatum Nutt. FACU Canyon Maple<br />

Acer macrophyllum Pursh FAC Big‐Leaf Maple<br />

Acer negundo L. FACW Ash‐Leaf Maple<br />

Acer saccharinum L. FAC Silver Maple<br />

Acer saccharum Marsh. FACU Sugar Maple<br />

Achillea millefolium L. FACU Common Yarrow<br />

Achna<strong>the</strong>rum diegoense (Swallen) Barkworth FACW San Diego Rice Grass<br />

Achna<strong>the</strong>rum nelsonii (Scribn.) Barkworth FACU Nelson's Rice Grass<br />

Achyrachaena mollis Schauer FAC Blow‐Wives<br />

Aconitum columbianum Nutt. FACW Columbian Monkshood<br />

Aconitum infectum Greene FACW Arizona Monkshood<br />

Aconogonon phytolaccifolium (Meisn. ex Small) Small FAC Alpine Fleeceflower<br />

Acorus americanus (Raf.) Raf. OBL Several‐Vein Sweetflag<br />

Acorus calamus L. OBL Single‐Vein Sweetflag<br />

Actaea rubra (Ait.) Willd. FAC Red Baneberry<br />

Adiantum aleuticum (Rupr.) Paris FAC Aleutian Maidenhair<br />

Adiantum capillus‐veneris L. FACW Sou<strong>the</strong>rn Maidenhair<br />

Adiantum jordanii C. Muell. FAC Cali<strong>for</strong>nia Maidenhair<br />

Adoxa moschatellina L. FAC Muskroot<br />

Aegopodium podagraria L. FAC Bishop's Goutweed<br />

Agalinis tenuifolia (Vahl) Raf. FACW Slender‐Leaf False Foxglove<br />

Agastache urticifolia (Benth.) Kuntze FACU Nettle‐Leaf Giant‐Hyssop<br />

Ageratina adenophora (Spreng.) King & H.E. Robins. FACU Crofton Weed<br />

Agoseris aurantiaca (Hook.) Greene FAC Orange‐Flower Goat‐Chicory<br />

Agoseris glauca (Pursh) Raf. FACU Pale Goat‐Chicory<br />

Agoseris monticola Greene FAC<br />

Agoseris parviflora (Nutt.) D. Dietr. FACU Small‐Flower Goat‐Chicory<br />

Agoseris X agrestis Osterhout (pro sp.) FAC<br />

Agoseris X elata (Nutt.) Greene FAC<br />

Agrimonia gryposepala Wallr. FAC Tall Hairy Grooveburr<br />

Agrimonia striata Michx. FACU Woodland Grooveburr<br />

Agrostis capillaris L. FAC Colonial Bent<br />

Agrostis elliottiana J.A. Schultes FACU Elliott's Bent<br />

Agrostis exarata Trin. FACW Spiked Bent

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Agrostis gigantea Roth FACW Black Bent<br />

Agrostis hendersonii A.S. Hitchc. FACW Henderson's Bent<br />

Agrostis hyemalis (Walt.) B.S.P. FACW Winter Bent<br />

Agrostis idahoensis Nash FACW Idaho Bent<br />

Agrostis mertensii Trin. FACU Nor<strong>the</strong>rn Bent<br />

Agrostis microphylla Steud. FACW Small‐Leaf Bent<br />

Agrostis oregonensis Vasey FACW Oregon Bent<br />

Agrostis pallens Trin. FACU Seashore Bent<br />

Agrostis pauzhetica Probatova FACU Thermal Bent<br />

Agrostis perennans (Walt.) Tuckerman FAC Upland Bent<br />

Agrostis rossiae Vasey FAC Ross' Bent<br />

Agrostis scabra Willd. FAC Rough Bent<br />

Agrostis stolonifera L. FACW Spreading Bent<br />

Ailanthus altissima (P. Mill.) Swingle FACU Tree‐of‐Heaven<br />

Aira caryophyllea L. FACU Common Silver‐Hair Grass<br />

Alhagi maurorum Medik. FAC Camelthorn<br />

Aliciella pinnatifida (Nutt. ex Gray) J.M. Porter FACU Sticky Cheat Gily‐Flower<br />

Alisma gramineum Lej. OBL Narrow‐Leaf Water‐<strong>Plant</strong>ain<br />

Alisma lanceolatum Wi<strong>the</strong>ring OBL Lance‐Leaf Water‐<strong>Plant</strong>ain<br />

Alisma subcordatum Raf. OBL American Water‐<strong>Plant</strong>ain<br />

Alisma triviale Pursh OBL Nor<strong>the</strong>rn Water‐<strong>Plant</strong>ain<br />

Allenrolfea occidentalis (S. Wats.) Kuntze FACW Iodinebush<br />

Alliaria petiolata (Bieb.) Cavara & Grande FACU Garlic‐Mustard<br />

Allium bisceptrum S. Wats. FACU Aspen Onion<br />

Allium cernuum Roth FACU Nodding Onion<br />

Allium douglasii Hook. FAC Douglas' Onion<br />

Allium geyeri S. Wats. FACU Geyer's Onion<br />

Allium hickmanii Eastw. FACU Hickman's Onion<br />

Allium hyalinum Curran FACU Glassy Onion<br />

Allium lemmonii S. Wats. FACU Claybank Onion<br />

Allium madidum S. Wats. OBL Swamp Onion<br />

Allium schoenoprasum L. FACW Wild Chives<br />

Allium validum S. Wats. OBL Tall Swamp Onion<br />

Allium vineale L. FACU Crow Garlic<br />

Allolepis texana (Vasey) Söderstrom & Decker FAC Texas‐Salt<br />

Allophyllum gilioides (Benth.) A.& V. Grant FAC Dense False Gily‐Flower<br />

Almutaster pauciflorus (Nutt.) A.& D. Löve FACW Marsh‐Aster<br />

Alnus glutinosa (L.) Gaertn. FACW European Alder<br />

Alnus incana (L.) Moench FACW Speckled Alder<br />

Alnus oblongifolia Torr. FACW Arizona Alder<br />

Alnus rhombifolia Nutt. FACW White Alder<br />

Alnus rubra Bong. FACW Red Alder<br />

Alnus viridis (Chaix) DC. FACW Sitka Alder<br />

Alopecurus aequalis Sobol. OBL Short‐Awn Meadow‐Foxtail<br />

Alopecurus arundinaceus Poir. FAC Creeping Meadow‐Foxtail<br />

Alopecurus carolinianus Walt. FACW Tufted Meadow‐Foxtail<br />

Alopecurus geniculatus L. OBL Marsh Meadow‐Foxtail

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Alopecurus magellanicus Lam. FACW Alpine Meadow‐Foxtail<br />

Alopecurus myosuroides Huds. FACW Slender Meadow‐Foxtail<br />

Alopecurus pratensis L. FACW Field Meadow‐Foxtail<br />

Alopecurus saccatus Vasey OBL Pacific Meadow‐Foxtail<br />

Alternan<strong>the</strong>ra philoxeroides (Mart.) Griseb. OBL Alligator‐Weed<br />

Amaranthus acanthochiton Sauer FACU Greenstripe<br />

Amaranthus albus L. FACU Tumbleweed<br />

Amaranthus arenicola I.M. Johnston FACU Sandhill Amaranth<br />

Amaranthus blitoides S. Wats. FACW Mat Amaranth<br />

Amaranthus blitum L. FAC Purple Amaranth<br />

Amaranthus cali<strong>for</strong>nicus (Moq.) S. Wats. FACW Cali<strong>for</strong>nia Amaranth<br />

Amaranthus crassipes Schlecht. FAC Spreading Amaranth<br />

Amaranthus obcordatus (Gray) Standl. FACU Trans‐Pecos Amaranth<br />

Amaranthus palmeri S. Wats. FACU Careless Weed<br />

Amaranthus retroflexus L. FACU Red‐Root<br />

Amaranthus spinosus L. FACU Spiny Amaranth<br />

Amaranthus tuberculatus (Moq.) Sauer FACW Rough‐Fruit Amaranth<br />

Amaranthus viridis L. FAC Slender Amaranth<br />

Amaranthus watsonii Standl. FACW Watson's Amaranth<br />

Amblyopappus pusillus Hook. & Arn. FACW Dwarf Coastweed<br />

Ambrosia artemisiifolia L. FACU Annual Ragweed<br />

Ambrosia psilostachya DC. FACU Perennial Ragweed<br />

Ambrosia pumila (Nutt.) Gray FACU Dwarf Burr‐Ragweed<br />

Ambrosia trifida L. FAC Great Ragweed<br />

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer FACU Saskatoon Service‐Berry<br />

Amelanchier utahensis Koehne FACU Utah Service‐Berry<br />

Amerorchis rotundifolia (Banks ex Pursh) Hultén OBL Round‐Leaf Orchid<br />

Ammannia auriculata Willd. OBL Eared Redstem<br />

Ammannia coccinea Rottb. OBL Valley Redstem<br />

Ammannia robusta Heer & Regel OBL Grand Redstem<br />

Ammophila arenaria (L.) Link FACU European Beach Grass<br />

Ammophila breviligulata Fern. FACU American Beach Grass<br />

Amorpha cali<strong>for</strong>nica Nutt. FAC Cali<strong>for</strong>nia Indigo‐Bush<br />

Amorpha fruticosa L. FACW False Indigo‐Bush<br />

Amorpha nana Nutt. FACU Fragrant Indigo‐Bush<br />

Amsinckia spectabilis Fisch. & C.A. Mey. FACU Woolly‐Breeches<br />

Andromeda polifolia L. OBL Bog‐Rosemary<br />

Andropogon gerardii Vitman FACU Big Bluestem<br />

Andropogon glomeratus (Walt.) B.S.P. FACW Bushy Bluestem<br />

Andropogon virginicus L. FAC Broom‐Sedge<br />

Androsace chamaejasme Wulfen FACU Sweet‐Flower Rock‐Jasmine<br />

Androsace fili<strong>for</strong>mis Retz. FACW Slender‐Stem Rock‐Jasmine<br />

Androsace occidentalis Pursh FACU <strong>West</strong>ern Rock‐Jasmine<br />

Androsace septentrionalis L. FACU Pygmy‐Flower Rock‐Jasmine<br />

Anemone canadensis L. FAC Round‐Leaf Thimbleweed<br />

Anemone narcissiflora L. FAC Narcissus‐Flower Thimbleweed<br />

Anemone oregana Gray FACU Blue Windflower

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Anemone parviflora Michx. FACW Small‐Flower Thimbleweed<br />

Anemone piperi Britt. ex Rydb. FACU Piper's Windflower<br />

Anemopsis cali<strong>for</strong>nica (Nutt.) Hook. & Arn. OBL Yerba‐Mansa<br />

Angelica ampla A. Nels. FACW Giant Angelica<br />

Angelica arguta Nutt. FACW Lyall's Angelica<br />

Angelica dawsonii S. Wats. FACW Dawson's Angelica<br />

Angelica genuflexa Nutt. FACW Kneeling Angelica<br />

Angelica kingii (S. Wats.) Coult. & Rose FACW Basin Angelica<br />

Angelica lucida L. FAC Seacoast Angelica<br />

Angelica pinnata S. Wats. FACW Small‐Leaf Angelica<br />

Anoda cristata (L.) Schlecht. FAC Crested Anoda<br />

Antennaria alpina (L.) Gaertn. FACU Alpine Pussytoes<br />

Antennaria arcuata Cronq. FACW Meadow Pussytoes<br />

Antennaria corymbosa E. Nels. FAC Flat‐Top Pussytoes<br />

Antennaria media Greene FAC Rocky Mountain Pussytoes<br />

Antennaria neglecta Greene FACU Field Pussytoes<br />

Antennaria pulchella Greene FAC Sierran Pussytoes<br />

Antennaria pulcherrima (Hook.) Greene FACU Showy Pussytoes<br />

Antennaria umbrinella Rydb. FACU Brown‐Bract Pussytoes<br />

An<strong>the</strong>mis cotula L. FACU Stinking Chamomile<br />

Anthoxanthum odoratum L. FAC Large Sweet Vernal Grass<br />

Anticlea elegans (Pursh) Rydb. FACU Mountain False Deathcamas<br />

Anticlea occidentalis (Gray) Zomlefer & Judd FACW <strong>West</strong>ern False Deathcamas<br />

Anticlea vaginata Rydb. FAC Shea<strong>the</strong>d False Deathcamas<br />

Anticlea virescens (Kunth) Rydb. FACU Green False Deathcamas<br />

Antigonon leptopus Hook. & Arn. FAC Queen's‐Jewels<br />

Apium nodiflorum (L.) Lag. OBL European Marshwort<br />

Apocynum cannabinum L. FAC Indian‐Hemp<br />

Aponogeton distachyos L. f. OBL Cape‐Pondweed<br />

Aptenia cordifolia (L. f.) Schwant. FAC Heart‐Leaf‐Iceplant<br />

Aquilegia caerulea James FACU Colorado Blue Columbine<br />

Aquilegia chrysantha Gray FAC Golden Columbine<br />

Aquilegia eximia Van Houtte ex Planch. OBL Van Houtte's Columbine<br />

Aquilegia <strong>for</strong>mosa Fisch. ex DC. FAC Crimson Columbine<br />

Aquilegia longissima Gray ex. S. Wats. FACW Long‐Spur Columbine<br />

Arabidopsis lyrata (L.) O'Kane & Al‐Shehbaz FACU Lyre‐Leaf Thalecress<br />

Arabis crucisetosa Constance & Rollins FAC Cross‐Hair Eared Rockcress<br />

Arabis eschscholtziana Andrz. FACU Pacific‐Coast Eared Rockcress<br />

Arabis goodrichii Welsh FACU Goodrich Eared Rockcress<br />

Arabis hirsuta (L.) Scop. FACU Hairy Eared Rockcress<br />

Aralia cali<strong>for</strong>nica S. Wats. FACW Cali<strong>for</strong>nia Spikenard<br />

Aralia nudicaulis L. FACU Wild Sarsaparilla<br />

Aralia racemosa L. FAC American Spikenard<br />

Arctium minus (Hill) Bernh. FACU Lesser Burrdock<br />

Arctostaphylos rubra (Rehd. & Wilson) Fern. FAC Red Manzanita<br />

Arctostaphylos uva‐ursi (L.) Spreng. FACU Red Bearberry<br />

Arenaria lanuginosa (Michx.) Rohrb. FACU Spreading Sandwort

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Arenaria paludicola B.L. Robins. OBL Marsh Sandwort<br />

Arenaria serpyllifolia L. FACU Thyme‐Leaf Sandwort<br />

Argentina anserina (L.) Rydb. OBL Common Silverweed<br />

<strong>Arid</strong>a arizonica (R.C. Jackson & R.R. Johnson) D. Morgan & FACU Common Desert Tansy‐Aster<br />

<strong>Arid</strong>a carnosa OBL Shrubby Alkali Desert Tansy‐Aster<br />

Aristida dichotoma Michx. FACU Church‐Mouse Three‐Awn<br />

Armeria maritima Willd. FACU Sea Thrift<br />

Arnica chamissonis Less. FACW Leafy Leopardbane<br />

Arnica fulgens Pursh FACU Shining Leopardbane<br />

Arnica lanceolata Nutt. FACW Lance‐Leaf Leopardbane<br />

Arnica latifolia Bong. FAC Daffodil Leopardbane<br />

Arnica longifolia D.C. Eat. FACW Spear‐Leaf Leopardbane<br />

Arnica mollis Hook. FAC Cordilleran Leopardbane<br />

Arnica ovata Greene FACW Sticky‐Leaf Leopardbane<br />

Artemisia biennis Willd. FACW Biennial Wormwood<br />

Artemisia cana Pursh FACU Coaltown Sagebrush<br />

Artemisia douglasiana Bess. ex Hook. FAC Douglas' Wormwood<br />

Artemisia ludoviciana Nutt. FACU White Sagebrush<br />

Artemisia norvegica Fries FACU Boreal Sagebrush<br />

Artemisia papposa Blake & Cronq. FACU Fuzzy Sagebrush<br />

Artemisia suksdorfii Piper FACU Coastal Wormwood<br />

Artemisia tilesii Ledeb. FACU Tilesius' Wormwood<br />

Arthrocnemum subterminale (Parish) Standl. FACW Parish's Glasswort<br />

Aruncus dioicus (Walt.) Fern. FACU Bride's‐Fea<strong>the</strong>rs<br />

Arundo donax L. FACW Giant‐Reed<br />

Asarum caudatum Lindl. FAC Long‐Tail Wild Ginger<br />

Asarum lemmonii S. Wats. OBL Lemmon's Wild Ginger<br />

Asclepias curassavica L. FAC Bloodflower<br />

Asclepias fascicularis Dcne. FAC Narrow‐Leaf Milkweed<br />

Asclepias incarnata L. OBL Swamp Milkweed<br />

Asclepias oeno<strong>the</strong>roides Cham. & Schlecht. FACU Zizotes Milkweed<br />

Asclepias speciosa Torr. FAC Showy Milkweed<br />

Asclepias subverticillata (Gray) Vail FACU Horsetail Milkweed<br />

Asclepias syriaca L. FACU Common Milkweed<br />

Asclepias texana Heller FACU Texas Milkweed<br />

Asclepias verticillata L. FACU Whorled Milkweed<br />

Asparagus officinalis L. FACU Asparagus<br />

Asplenium adiantum‐nigrum L. FACU Black Spleenwort<br />

Asplenium platyneuron (L.) B.S.P. FACU Ebony Spleenwort<br />

Asplenium trichomanes L. FAC Maidenhair Spleenwort<br />

Astragalus agrestis Dougl. ex G. Don FAC Cock's‐Head<br />

Astragalus alpinus L. FAC Alpine Milk‐Vetch<br />

Astragalus americanus (Hook.) M.E. Jones FAC American Milk‐Vetch<br />

Astragalus argophyllus Nutt. FACW Silver‐Leaf Milk‐Vetch<br />

Astragalus bodinii Sheldon FACW Bodin's Milk‐Vetch<br />

Astragalus canadensis L. FAC Canadian Milk‐Vetch<br />

Astragalus clevelandii Greene FAC Cleveland's Milk‐Vetch

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Astragalus diaphanus Dougl. ex Hook. FACU Transparent Milk‐Vetch<br />

Astragalus eucosmus B.L. Robins. FACU Elegant Milk‐Vetch<br />

Astragalus hornii Gray FAC Horn's Milk‐Vetch<br />

Astragalus lemmonii Gray FACW Lemmon's Milk‐Vetch<br />

Astragalus leptaleus Gray OBL Park Milk‐Vetch<br />

Astragalus limnocharis Barneby OBL Cedar‐Breaks Milk‐Vetch<br />

Astragalus phoenix Barneby FACU Ash Meadows Milk‐Vetch<br />

Astragalus pycnostachyus Gray OBL Marsh Milk‐Vetch<br />

Astragalus robbinsii (Oakes) Gray FAC Robbins' Milk‐Vetch<br />

Astragalus tener Gray FACW Alkali Milk‐Vetch<br />

Athyrium americanum (Butters) Maxon FAC American Alpine Lady Fern<br />

Athyrium filix‐femina (L.) Roth FAC Subarctic Lady Fern<br />

Atriplex amnicola P.G. Wilson FAC Swamp Saltbush<br />

Atriplex argentea Nutt. FAC Silverscale<br />

Atriplex bonnevillensis C.A. Hanson FACW Bonneville Saltbush<br />

Atriplex cali<strong>for</strong>nica Moq. FAC Cali<strong>for</strong>nia Saltbush<br />

Atriplex cordulata Jepson FAC Heartscale<br />

Atriplex coronata S. Wats. FACW Crown Saltbush<br />

Atriplex coulteri (Moq.) D. Dietr. FACU Coulter's Saltbush<br />

Atriplex depressa Jepson FAC Rhomboid‐Bract Saltbush<br />

Atriplex dioica Raf. FAC Saline Saltbush<br />

Atriplex fruticulosa Jepson FACW Ball Saltbush<br />

Atriplex gmelinii C.A. Mey. ex Bong. FACW Gmelin's Saltbush<br />

Atriplex griffithsii Standl. FACU Griffiths' Saltbush<br />

Atriplex hillmanii (M.E. Jones) Standley FACU Hillman's Silverscale<br />

Atriplex hortensis L. FAC Garden Orache<br />

Atriplex joaquiniana A. Nels. FACU San Joaquin Saltbush<br />

Atriplex lenti<strong>for</strong>mis (Torr.) S. Wats. FAC Quailbush<br />

Atriplex leucophylla (Moq.) D. Dietr. FAC Beach Saltbush<br />

Atriplex minuscula Standl. FACU Lesser Saltbush<br />

Atriplex pacifica A. Nels. FACU Davidson's Saltbush<br />

Atriplex parishii S. Wats. FAC Brittlescale<br />

Atriplex parryi S. Wats. FAC Parry's Saltbush<br />

Atriplex patula L. FACW Halberd‐Leaf Orache<br />

Atriplex persistens Stutz & Chu FACW Sacramento Saltbush<br />

Atriplex phyllostegia (Torr. ex S. Wats.) S. Wats. FACW Arrow Saltbush<br />

Atriplex polycarpa (Torr.) S. Wats. FACU Cattle‐Spinach<br />

Atriplex prostrata Bouchér ex DC. FACW Hastate Orache<br />

Atriplex pusilla (Torr.) S. Wats. FAC Smooth Saltbush<br />

Atriplex rosea L. FACU Tumbling Orache<br />

Atriplex semibaccata R. Br. FAC Australian Saltbush<br />

Atriplex serenana A. Nels. FAC Bracted Saltbush<br />

Atriplex spinifera J.F. Macbr. FAC Spinescale<br />

Atriplex suberecta I. Verd. FACU Peregrine Saltbush<br />

Atriplex torreyi (S. Wats.) S. Wats. FAC Torrey's Saltbush<br />

Atriplex tridentata Kuntze FACW Basin Saltbush<br />

Atriplex truncata (Torr. ex S. Wats.) Gray FACU Wedge‐Leaf Orache

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Atriplex tularensis Coville FAC Bakersfield Saltbush<br />

Atriplex vallicola Hoover FACW Lost Hills Saltbush<br />

Atriplex watsonii A. Nels. FACW Watson's Saltbush<br />

Atriplex welshii C.A. Hanson FACU Welsh's Saltbush<br />

Avicennia marina (Forssk.) Vierh. OBL Gray Mangrove<br />

Axonopus compressus (Sw.) Beauv. FACW Broad‐Leaf Carpet Grass<br />

Axonopus fissifolius (Raddi) Kuhlm. FAC Narrow‐Leaf Carpet Grass<br />

Azolla filiculoides Lam. OBL Large Mosquito Fern<br />

Azolla microphylla Kaulfuss OBL Mexican Mosquito Fern<br />

Baccharis glutinosa Pers. FACW<br />

Baccharis neglecta Britt. FAC Roosevelt‐Weed<br />

Baccharis salicifolia (Ruiz & Pavón) Pers. FAC Mule's‐Fat<br />

Baccharis salicina Torr. & Gray FACW Great Plains False Willow<br />

Baccharis sarothroides Gray FACU Rosinbush<br />

Baccharis sergiloides Gray FACU Squaw's False Willow<br />

Baccharis wrightii Gray FACU Wright's False Willow<br />

Bacopa eisenii (Kellogg) Pennell OBL Gila River Water‐Hyssop<br />

Bacopa monnieri (L.) Pennell OBL Herb‐of‐Grace<br />

Bacopa repens (Sw.) Wettst. OBL Creeping Water‐Hyssop<br />

Bacopa rotundifolia (Michx.) Wettst. OBL Disk Water‐Hyssop<br />

Bambusa vulgaris Schrad. ex J.C. Wendl. FACU Fea<strong>the</strong>ry Bamboo<br />

Barbarea orthoceras Ledeb. FACW American Yellow‐Rocket<br />

Barbarea vulgaris Ait. f. FAC Garden Yellow‐Rocket<br />

Barkleyanthus salicifolius (Kunth) H.E. Robins. & Brett. FAC Barkley's‐Ragwort<br />

Bassia americana (S. Wats.) A.J. Scott FAC Greenmolly<br />

Bassia cali<strong>for</strong>nica (S. Wats.) A.J. Scott FACW Cali<strong>for</strong>nia Smo<strong>the</strong>rweed<br />

Bassia hirsuta (L.) Aschers. OBL Hairy Smo<strong>the</strong>rweed<br />

Bassia hyssopifolia (Pallas) Kuntz FAC Five‐Horn Smo<strong>the</strong>rweed<br />

Bassia scoparia (L.) A.J. Scott FAC Mexican‐Fireweed<br />

Batis maritima L. OBL Turtleweed<br />

Beckmannia syzigachne (Steud.) Fern. OBL American Slough Grass<br />

Berberis thunbergii DC. FACU Japanese Barberry<br />

Berberis vulgaris L. FACU European Barberry<br />

Bergia texana (Hook.) Seub. ex Walp. OBL Texas Bergia<br />

Berula erecta (Huds.) Coville OBL Cut‐Leaf‐Water‐Parsnip<br />

Besseya alpina (Gray) Rydb. FACW Alpine Coraldrops<br />

Besseya plantaginea (James) Rydb. FAC White River Coraldrops<br />

Betula glandulosa Michx. OBL Resin Birch<br />

Betula occidentalis Hook. FACW Water Birch<br />

Betula papyrifera Marsh. FAC Paper Birch<br />

Betula pubescens Ehrh. FAC Downy Birch<br />

Betula pumila L. OBL Bog Birch<br />

Bidens aurea (Ait.) Sherff OBL Arizona Beggarticks<br />

Bidens beckii Torr. ex Spreng. OBL Beck's Water‐Marigold<br />

Bidens bigelovii Gray FACW Bigelow's Beggarticks<br />

Bidens bipinnata L. FAC Spanish‐Needles<br />

Bidens cernua L. OBL Nodding Burr‐Marigold

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Bidens frondosa L. FACW Devil's‐Pitch<strong>for</strong>k<br />

Bidens laevis (L.) B.S.P. OBL Smooth Beggarticks<br />

Bidens leptocephala Sherff FAC Few‐Flower Beggarticks<br />

Bidens pilosa L. FAC Hairy Beggarticks<br />

Bidens tenuisecta Gray FAC Slim‐Lobe Beggarticks<br />

Bidens tripartita L. OBL Three‐Lobe Beggarticks<br />

Bidens vulgata Greene FACW Tall Beggarticks<br />

Bistorta bistortoides (Pursh) Small FACW American Bistort<br />

Bistorta vivipara (L.) Delarbre FAC Serpent‐Grass<br />

Blechnum spicant (L.) Sm. FAC Deer Fern<br />

Blennosperma bakeri Heiser OBL Baker's Stickyseed<br />

Blennosperma nanum (Hook.) Blake FACW Common Stickyseed<br />

Bloomeria clevelandii S. Wats. FACU San Diego Goldenstars<br />

Boechera grahamii (Lehm.) Windham & Al‐Shehbaz FACU<br />

Boechera holboellii (Hornem.) A.& D. Löve FACU Holboell's Rockcress<br />

Boechera lemmonii (S. Wats.) W.A. Weber FACU Soldier Rockcress<br />

Boechera stricta (Graham) Al‐Shehbaz FACU Canadian Rockcress<br />

Boehmeria cylindrica (L.) Sw. OBL Small‐Spike False Nettle<br />

Boerhavia erecta L. FACU Erect Spiderling<br />

Bolandra cali<strong>for</strong>nica Gray FACW Sierran False Coolwort<br />

Bolandra oregana S. Wats. FACW Nor<strong>the</strong>rn False Coolwort<br />

Boltonia asteroides (L.) L'Hér. OBL White Doll's Daisy<br />

Bombycilaena cali<strong>for</strong>nica (Fisch. & C.A. Mey.) Holub FACU False Cottonseed<br />

Borrichia frutescens (L.) DC. FACW Bushy Seaside‐Tansy<br />

Bothriochloa bladhii (Retz.) S.T. Blake FACU Australian Beard Grass<br />

Botrychium ascendens W.H. Wagner FAC Triangle‐Lobe Moonwort<br />

Botrychium crenulatum W.H. Wagner FACW Scalloped Moonwort<br />

Botrychium hesperium (Maxon & Clausen) W.H. Wagner & Lelling FACU <strong>West</strong>ern Moonwort<br />

Botrychium lanceolatum (Gmel.) Angstr. FACW Lance‐Leaf Moonwort<br />

Botrychium lunaria (L.) Sw. FAC Common Moonwort<br />

Botrychium pinnatum St. John FACU Nor<strong>the</strong>astern Moonwort<br />

Botrychium simplex E. Hitchc. FAC Least Moonwort<br />

Botrypus virginianus (L.) Holub FAC Rattlesnake Fern<br />

Bouteloua dactyloides (Nutt.) J.T. Columbus FACU Buffalo Grass<br />

Bowlesia incana Ruiz & Pavón FACU Hoary Bowlesia<br />

Boykinia major Gray FACW Mountain Brookfoam<br />

Boykinia occidentalis Torr. & Gray FAC Coastal Brookfoam<br />

Boykinia rotundifolia Parry FACW Round‐Leaf Brookfoam<br />

Brasenia schreberi J.F. Gmel. OBL Watershield<br />

Brassica juncea (L.) Czern. FACU Chinese Mustard<br />

Brassica rapa L. FACU Rape<br />

Braya glabella Richards. FAC Smooth Nor<strong>the</strong>rn‐Rockcress<br />

Brickellia cali<strong>for</strong>nica (Torr. & Gray) Gray FACU Cali<strong>for</strong>nia Brickellbush<br />

Brickellia greenei Gray FACU Mountain Brickellbush<br />

Briza media L. FAC Perennial Quaking Grass<br />

Briza minor L. FAC Lesser Quaking Grass<br />

Brodiaea coronaria (Salisb.) Engl. FAC Harvest Cluster‐Lily

---

Brodiaea elegans Hoover FACU Elegant Cluster‐Lily<br />

Brodiaea filifolia S. Wats. FAC Thread‐Leaf Cluster‐Lily<br />

Brodiaea orcuttii (Greene) Baker OBL Orcutt's Cluster‐Lily<br />

Brodiaea pallida Hoover FACW Chinese Camp Cluster‐Lily<br />

Bromidium tandilense (Kuntze) Rúgolo OBL Kennedy's Tropical Bent<br />

Bromus arvensis L. FACU Field Brome<br />

Bromus ciliatus L. FAC Fringed Brome<br />

Bromus hordeaceus L. FACU Soft Brome<br />

Bromus inermis Leyss. FACU Smooth Brome<br />

Bromus pubescens Muhl. ex Willd. FACU Hairy Woodland Brome<br />

Bromus richardsonii Link FACU Richardson's Brome<br />

Bromus vulgaris (Hook.) Shear FACU Colombian Brome<br />

Broussonetia papyrifera (L.) L'Hér. ex Vent. FACU Paper‐Mulberry<br />

Browallia eludens R.K. Van Devender & P.D. Jenkins FACW Bush‐Violet<br />

Buchnera americana L. FAC American Bluehearts<br />

Buddleja davidii Franch. FACU Orange‐Eye Butterfly‐Bush<br />

Bulbostylis barbata (Rottb.) C.B. Clarke FACU Water‐Grass<br />

Bulbostylis capillaris (L.) Kunth ex C.B. Clarke FACU Dense‐Tuft Hair Sedge<br />

Bulbostylis funckii (Steud.) C.B. Clarke FACW Funck's Hair Sedge<br />

Bulbostylis juncoides (Vahl) Kükenth. ex Herter FACW Rush Hair Sedge<br />

Butomus umbellatus L. OBL Flowering‐Rush<br />

Cabomba caroliniana Gray OBL Carolina Fanwort<br />

Cakile edentula (Bigelow) Hook. FACU American Searocket<br />

Cakile maritima Scop. FAC European Searocket<br />

Calamagrostis bolanderi Thurb. FACW Bolander's Reed Grass<br />

Calamagrostis breweri Thurb. FACW Short‐Hair Reed Grass<br />

Calamagrostis canadensis (Michx.) Beauv. FACW Bluejoint<br />

Calamagrostis nutkaensis (J. Presl) J. Presl ex Steud. FACW Nootka Reed Grass<br />

Calamagrostis scopulorum M.E. Jones FAC Ditch Reed Grass<br />

Calamagrostis stricta (Timm) Koel. FACW Slim‐Stem Reed Grass<br />

Calamagrostis tweedyi (Scribn.) Scribn. ex Vasey FAC Cascade Reed Grass<br />

Calandrinia ciliata (Ruiz & Pavón) DC. FACU Fringed Redmaids<br />

Calibrachoa parviflora (Juss.) D'Arcy FACW Seaside‐Petunia<br />

Callisia repens (Jacq.) L. FACU Creeping‐Inchplant<br />

Callitriche hermaphroditica L. OBL Autumn Water‐Starwort<br />

Callitriche heterophylla Pursh OBL Greater Water‐Starwort<br />

Callitriche marginata Torr. OBL Winged Water‐Starwort<br />

Callitriche palustris L. OBL Vernal Water‐Starwort<br />

Callitriche stagnalis Scop. OBL Pond Water‐Starwort<br />

Callitriche trochlearis Fassett OBL Effluent Water‐Starwort<br />

Calochortus excavatus Greene FACU Inyo Mariposa‐Lily<br />

Calochortus longebarbatus S. Wats. FAC Long‐Beard Mariposa‐Lily<br />

Calochortus minimus Ownbey FAC Sierran Mariposa‐Lily<br />

Calochortus monanthus Ownbey FAC Shasta River Mariposa‐Lily<br />

Calochortus nudus S. Wats. FAC Naked Mariposa‐Lily<br />

Calochortus palmeri S. Wats. FACW Palmer's Mariposa‐Lily<br />

Calochortus striatus Parish FACW Alkali Mariposa‐Lily

---

Calochortus uniflorus Hook. & Arn. FACW Monterey Mariposa‐Lily<br />

Caltha leptosepala DC. OBL White Marsh‐Marigold<br />

Caltha palustris L. OBL Yellow Marsh‐Marigold<br />

Calycanthus occidentalis Hook. & Arn. FAC <strong>West</strong>ern Sweetshrub<br />

Calypso bulbosa (L.) Oakes FAC Fairy‐Slipper Orchid<br />

Calyptocarpus vialis Less. FAC Straggler Daisy<br />

Calystegia sepium (L.) R. Br. FAC Hedge False Bindweed<br />

Camassia leichtlinii (Baker) S. Wats. FACW Large Camas<br />

Camassia quamash (Pursh) Greene FACW Small Camas<br />

Camelina microcarpa Andrz. ex DC. FACU Little‐Pod False Flax<br />

Camelina sativa (L.) Crantz FACU Gold‐of‐Pleasure<br />

Camissonia breviflora (Torr. & Gray) Raven FAC Short‐Flower Suncup<br />

Camissonia subacaulis (Pursh) Raven FACW Long‐Leaf Suncup<br />

Camissonia tanacetifolia (Torr. & Gray) Raven FACU Tansy‐Leaf Suncup<br />

Campanula cali<strong>for</strong>nica (Kellogg) Heller OBL Swamp Bellflower<br />

Campanula parryi Gray FACU Parry's Bellflower<br />

Campanula rotundifolia L. FACU Bluebell‐of‐Scotland<br />

Campanula scouleri Hook. ex A. DC. FACU Pale Bellflower<br />

Campanula uniflora L. FAC Arctic Bellflower<br />

Campanula wilkinsiana Greene FACW Wilkins' Bellflower<br />

Campsis radicans (L.) Seem. ex Bureau FACU Trumpet‐Creeper<br />

Canadanthus modestus (Lindl.) Nesom FACW Canada‐Aster<br />

Cannabis sativa L. FACU Hemp<br />

Capsella bursa‐pastoris (L.) Medik. FACU Shepherd's‐Purse<br />

Cardamine angulata Hook. FACW Seaside Bittercress<br />

Cardamine bellidifolia L. FAC Alpine Bittercress<br />

Cardamine breweri S. Wats. FACW Sierran Bittercress<br />

Cardamine constancei Detling FAC Constance's Bittercress<br />

Cardamine cordifolia Gray FACW Large Mountain Bittercress<br />

Cardamine flexuosa With. FACU Woodland Bittercress<br />

Cardamine hirsuta L. FACU Hairy Bittercress<br />

Cardamine macrocarpa Brandeg. FAC Large‐Seed Bittercress<br />

Cardamine nuttallii Greene FAC Nuttall's Toothwort<br />

Cardamine occidentalis (S. Wats. ex B.L. Robins.) T.J. Howell FACW Big <strong>West</strong>ern Bittercress<br />

Cardamine oligosperma Nutt. FAC Little <strong>West</strong>ern Bittercress<br />

Cardamine pachystigma (S. Wats.) Rollins FAC Serpentine Bittercress<br />

Cardamine parviflora L. FACW Sand Bittercress<br />

Cardamine pensylvanica Muhl. ex Willd. FACW Quaker Bittercress<br />

Cardamine rupicola (O.E. Schulz) C.L. Hitchc. FAC Cliff Bittercress<br />

Cardamine umbellata Greene FACW Umbell's Bittercress<br />

Carduus nutans L. FACU Nodding Plumeless‐Thistle<br />

Carex aboriginum M.E. Jones, 1910 OBL<br />

Carex abrupta Mackenzie FAC Abrupt‐Beak Sedge<br />

Carex albida Bailey OBL White Sedge<br />

Carex albonigra Mackenzie FACU Black‐and‐White‐Scale Sedge<br />

Carex alma Bailey OBL Sturdy Sedge<br />

Carex amplifolia Boott OBL Big‐Leaf Sedge

---

Carex angustata Boott FACW Many‐Fruit Sedge<br />

Carex aperta Boott FACW Columbian Sedge<br />

Carex aquatilis Wahlenb. OBL Leafy Tussock Sedge<br />

Carex arcta Boott OBL Nor<strong>the</strong>rn Cluster Sedge<br />

Carex a<strong>the</strong>rodes Spreng. OBL Wheat Sedge<br />

Carex athrostachya Olney FACW Slender‐Beak Sedge<br />

Carex atrosquama Mackenzie FACU Lesser Black‐Scale Sedge<br />

Carex aurea Nutt. OBL Golden‐Fruit Sedge<br />

Carex barbarae Dewey FAC Santa Barbara Sedge<br />

Carex bebbii Olney ex Fern. OBL Bebb's Sedge<br />

Carex bella Bailey FACU Southwestern Showy Sedge<br />

Carex blanda Dewey FAC Eastern Woodland Sedge<br />

Carex bolanderi Olney FAC Bolander's Sedge<br />

Carex brevior (Dewey) Mackenzie FAC Short‐Beak Sedge<br />

Carex brunnescens (Pers.) Poir. OBL Brownish Sedge<br />

Carex buxbaumii Wahlenb. OBL Brown Bog Sedge<br />

Carex cali<strong>for</strong>nica Bailey FACW Cali<strong>for</strong>nia Sedge<br />

Carex canescens L. OBL Hoary Sedge<br />

Carex capillaris L. FACW Hair‐Like Sedge<br />

Carex capitata L. FAC Capitate Sedge<br />

Carex chordorrhiza Ehrh. ex L. f. OBL Rope‐Root Sedge<br />

Carex comosa Boott OBL Bearded Sedge<br />

Carex concinna R. Br. FAC Low Nor<strong>the</strong>rn Sedge<br />

Carex conoidea Schkuhr ex Willd. FACW Open‐Field Sedge<br />

Carex constanceana Stacey FACW Constance's Sedge<br />

Carex crawei Dewey FACW Crawe's Sedge<br />

Carex craw<strong>for</strong>dii Fern. FAC Craw<strong>for</strong>d's Sedge<br />

Carex cusickii Mackenzie ex Piper & Beattie OBL Cusick's Sedge<br />

Carex densa (Bailey) Bailey OBL Dense Sedge<br />

Carex deweyana Schwein. FACU Dewey's Sedge<br />

Carex diandra Schrank OBL Lesser Tussock Sedge<br />

Carex disperma Dewey OBL Soft‐Leaf Sedge<br />

Carex douglasii Boott FAC Douglas' Sedge<br />

Carex echinata Murr. OBL Star Sedge<br />

Carex elynoides Holm FAC Black‐Root Sedge<br />

Carex emoryi Dewey OBL Emory's Sedge<br />

Carex exsiccata Bailey OBL <strong>West</strong>ern Inflated Sedge<br />

Carex feta Bailey FACW Green‐Sheath Sedge<br />

Carex fissuricola Mackenzie FACW Cleft Sedge<br />

Carex flava L. OBL Yellow‐Green Sedge<br />

Carex foenea Willd. FACU<br />

Carex fracta Mackenzie FAC Fragile‐Sheath Sedge<br />

Carex frankii Kunth OBL Frank's Sedge<br />

Carex fuliginosa Schkuhr FACU Short‐Leaf Sedge<br />

Carex garberi Fern. FACW Elk Sedge<br />

Carex gravida Bailey FACW Heavy Sedge<br />

Carex gynocrates Wormsk. ex Drej. OBL Nor<strong>the</strong>rn Bog Sedge

---

Carex gynodynama Olney FAC Olney's Hairy Sedge<br />

Carex hallii Olney FACW Deer Sedge<br />

Carex har<strong>for</strong>dii Mackenzie OBL Har<strong>for</strong>d's Sedge<br />

Carex hassei Bailey FACW Hasse's Sedge<br />

Carex haydeniana Olney FAC Hayden's Sedge<br />

Carex hendersonii Bailey FAC Henderson's Sedge<br />

Carex heteroneura W. Boott FAC Different‐Nerve Sedge<br />

Carex hirtissima W. Boott OBL Fuzzy Sedge<br />

Carex hoodii Boott FAC Hood's Sedge<br />

Carex hystericina Muhl. ex Willd. OBL Porcupine Sedge<br />

Carex idahoa Bailey FACW Idaho Sedge<br />

Carex illota Bailey FACW Small‐Head Sedge<br />

Carex incurvi<strong>for</strong>mis Mackenzie FAC Coastal‐Sand Sedge<br />

Carex infirminervia Naczi FAC<br />

Carex integra Mackenzie OBL Smooth‐Beak Sedge<br />

Carex interior Bailey OBL Inland Sedge<br />

Carex interrupta Boeckl. OBL Green‐Fruit Sedge<br />

Carex jonesii Bailey FACW Jones' Sedge<br />

Carex klama<strong>the</strong>nsis B.L. Wilson & L.P. Janeway OBL Klamath Sedge<br />

Carex lachenalii Schkuhr OBL Arctic Hare‐Foot Sedge<br />

Carex laeviculmis Meinsh. FACW Smooth‐Stem Sedge<br />

Carex lasiocarpa Ehrh. OBL Woolly‐Fruit Sedge<br />

Carex lemmonii W. Boott OBL Lemmon's Sedge<br />

Carex lenticularis Michx. OBL Lakeshore Sedge<br />

Carex leporinella Mackenzie FACW Sierran Hare Sedge<br />

Carex leptalea Wahlenb. OBL Bristly‐Stalk Sedge<br />

Carex leptopoda Mackenzie FAC Taper‐Fruit Short‐Scale Sedge<br />

Carex limosa L. OBL Mud Sedge<br />

Carex livida (Wahlenb.) Willd. OBL Livid Sedge<br />

Carex longii Mackenzie FACW Long's Sedge<br />

Carex luzulifolia W. Boott FACW Little‐Leaf Sedge<br />

Carex luzulina Olney OBL Woodrush Sedge<br />

Carex lyngbyei Hornem. OBL Lyngbye's Sedge<br />

Carex macloviana d'Urv. FACW Falkland Island Sedge<br />

Carex macrochaeta C.A. Mey. FACW Alaska Long‐Awn Sedge<br />

Carex magellanica Lam. OBL Boreal‐Bog Sedge<br />

Carex mariposana Bailey ex Mackenzie FACW Mariposa Sedge<br />

Carex mckittrickensis P.W. Ball FACW Guadalupe Mountain Sedge<br />

Carex meadii Dewey OBL Mead's Sedge<br />

Carex media R. Br. FACW Montana Sedge<br />

Carex mendocinensis Olney FACW Mendocino Sedge<br />

Carex mertensii Prescott ex Bong. FAC Mertens' Sedge<br />

Carex microdonta Torr. & Hook. FAC Little‐Tooth Sedge<br />

Carex microglochin Wahlenb. OBL False Uncinia Sedge<br />

Carex micropoda C.A. Mey. FAC Pyrenean Sedge<br />

Carex microptera Mackenzie FAC Small‐Wing Sedge<br />

Carex molesta Mackenzie ex Bright FAC Troublesome Sedge

---

Carex nardina Fries FACU Nard Sedge<br />

Carex nebrascensis Dewey OBL Nebraska Sedge<br />

Carex nelsonii Mackenzie FAC Nelson's Sedge<br />

Carex nervina Bailey FACW Sierran Sedge<br />

Carex neurophora Mackenzie FACW Alpine Nerve Sedge<br />

Carex nigricans C.A. Mey. FACW Black Alpine Sedge<br />

Carex nova Bailey FAC New Sedge<br />

Carex nudata W. Boott FACW Torrent Sedge<br />

Carex obispoensis Stacey FACW San Luis Obispo Sedge<br />

Carex obnupta Bailey OBL Slough Sedge<br />

Carex ovalis Goodenough FACW Oval Sedge<br />

Carex pachystachya Cham. ex Steud. FAC Thick‐Head Sedge<br />

Carex pallescens L. FAC Pale Sedge<br />

Carex pansa Bailey FACU Sand‐Dune Sedge<br />

Carex parryana Dewey FAC Parry's Sedge<br />

Carex pauciflora Lightf. OBL Few‐Flower Sedge<br />

Carex paysonis Clokey FACU Payson's Sedge<br />

Carex pellita Muhl. ex Willd. OBL Woolly Sedge<br />

Carex pelocarpa F.J. Herm. FAC Dusky‐Seed Sedge<br />

Carex pendula Huds. FAC Pendulous Sedge<br />

Carex petasata Dewey FAC Liddon Sedge<br />

Carex phaeocephala Piper FACU Mountain Hare Sedge<br />

Carex podocarpa R. Br. FAC Short‐Stalk Sedge<br />

Carex praeceptorum Mackenzie OBL Teacher's Sedge<br />

Carex praegracilis W. Boott FACW Clustered Field Sedge<br />

Carex praticola Rydb. FACW Nor<strong>the</strong>rn Meadow Sedge<br />

Carex preslii Steud. FACU Presl's Sedge<br />

Carex raynoldsii Dewey FACU Raynolds' Sedge<br />

Carex retrorsa Schwein. OBL Retrorse Sedge<br />

Carex rostrata Stokes OBL Swollen Beaked Sedge<br />

Carex rupestris All. FACU Curly Sedge<br />

Carex salini<strong>for</strong>mis Mackenzie FACW Santa Cruz Sedge<br />

Carex sartwelliana Olney OBL Yosemite Sedge<br />

Carex sartwellii Dewey OBL Sartwell's Sedge<br />

Carex saxatilis L. OBL Russet Sedge<br />

Carex scabriuscula Mackenzie FACW Cascade Sedge<br />

Carex schottii Dewey OBL Schott's Sedge<br />

Carex scirpoidea Michx. FAC Canadian Single‐Spike Sedge<br />

Carex scoparia Schkuhr ex Willd. FACW Pointed Broom Sedge<br />

Carex scopulorum Holm FACW Holm's Rocky Mountain Sedge<br />

Carex senta Boott OBL <strong>West</strong>ern Rough Sedge<br />

Carex serratodens W. Boott FACW Saw‐Tooth Sedge<br />

Carex sheldonii Mackenzie OBL Sheldon's Sedge<br />

Carex simulata Mackenzie OBL Analogue Sedge<br />

Carex spectabilis Dewey FACW Northwestern Showy Sedge<br />

Carex specuicola J.T. Howell OBL Navajo Sedge<br />

Carex spissa Bailey FAC San Diego Sedge

---

Carex sprengelii Dewey ex Spreng. FAC Long‐Beak Sedge<br />

Carex stevenii (Holm) Kalela FAC Steven's Sedge<br />

Carex stipata Muhl. ex Willd. OBL Stalk‐Grain Sedge<br />

Carex stricta Lam. OBL Uptight Sedge<br />

Carex subbracteata Mackenzie FACW Small‐Bract Sedge<br />

Carex subfusca W. Boott FAC Rusty Sedge<br />

Carex subnigricans Stacey FAC Dark Mountain Sedge<br />

Carex sychnocephala Carey FACW Many‐Head Sedge<br />

Carex tenera Dewey FACW Quill Sedge<br />

Carex tenuiflora Wahlenb. OBL Sparse‐Flower Sedge<br />

Carex thurberi Dewey FAC Thurber's Sedge<br />

Carex tiogana D. Taylor & J. Mastrogiuseppe, sp. nov. ine FACW Mono Sedge<br />

Carex torreyi Tuckerman FAC Torrey's Sedge<br />

Carex tumulicola Mackenzie FACU Foothill Sedge<br />

Carex turbinata Liebm. FACU Turban Sedge<br />

Carex unilateralis Mackenzie FACW One‐Sided Sedge<br />

Carex utriculata Boott OBL Northwest Territory Sedge<br />

Carex vallicola Dewey FAC Valley Sedge<br />

Carex vernacula Bailey FAC Native Sedge<br />

Carex vesicaria L. OBL Lesser Bladder Sedge<br />

Carex viridula Michx. OBL Little Green Sedge<br />

Carex vulpinoidea Michx. OBL Common Fox Sedge<br />

Carex X physocarpoides Lepage OBL<br />

Carpobrotus chilensis (Molina) N.E. Br. FACU Baby Sun‐Rose<br />

Carum carvi L. FACU Caraway<br />

Carya illinoinensis (Wangenh.) K. Koch FAC Pecan<br />

Cassiope mertensiana (Bong.) G. Don FACU <strong>West</strong>ern Moss‐Hea<strong>the</strong>r<br />

Cassiope tetragona (L.) D. Don FACU White Arctic Mountain‐Hea<strong>the</strong>r<br />

Castilleja ambigua Hook. & Arn. FACW Johnnynip<br />

Castilleja campestris (Benth.) Chuang & Heckard FACW Vernal‐Pool Indian‐Paintbrush<br />

Castilleja chrymactis Pennell OBL Panhandle Indian‐Paintbrush<br />

Castilleja lemmonii Gray FACW Lemmon's Indian‐Paintbrush<br />

Castilleja lineata Greene FACW Marsh‐Meadow Indian‐Paintbrush<br />

Castilleja miniata Dougl. ex Hook. FACW Great Red Indian‐Paintbrush<br />

Castilleja minor (Gray) Gray OBL Alkali Indian‐Paintbrush<br />

Castilleja mogollonica Pennell FACW Mogollon Indian‐Paintbrush<br />

Castilleja occidentalis Torr. FAC Pale‐Yellow Indian‐Paintbrush<br />

Castilleja parviflora Bong. FAC Small‐Flower Indian‐Paintbrush<br />

Castilleja rhexiifolia Rydb. FAC Rosy Indian‐Paintbrush<br />

Castilleja salsuginosa N. Holmgren FAC Monte Neva Indian‐Paintbrush<br />

Castilleja septentrionalis Lindl. FACU Labrador Indian‐Paintbrush<br />

Castilleja suksdorfii Gray FACW Suksdorf's Indian‐Paintbrush<br />

Castilleja tenuis (Heller) Chuang & Heckard FAC Hairy Indian‐Paintbrush<br />

Castilleja uliginosa Eastw. OBL Pitkin Marsh Indian‐Paintbrush<br />

Casuarina equisetifolia L. FACU Beach She‐Oak<br />

Catabrosa aquatica (L.) Beauv. OBL Water Whorl Grass<br />

Catalpa speciosa Warder ex Engelm. FAC Nor<strong>the</strong>rn Catalpa

---

Celastrus scandens L. FACU American Bittersweet<br />

Celtis laevigata Willd. FAC Sugar‐Berry<br />

Celtis occidentalis L. FAC Common Hackberry<br />

Celtis reticulata Torr. FAC Net‐Leaf Hackberry<br />

Cenchrus echinatus L. FACU Sou<strong>the</strong>rn Sandburr<br />

Cenchrus myosuroides Kunth FACU Big Sandburr<br />

Centaurea cyanus L. FACU Garden Cornflower<br />

Centaurium calycosum (Buckl.) Fern. FACW Buckley's Centaury<br />

Centaurium davyi (Jepson) Abrams FAC Davy's Centaury<br />

Centaurium erythraea Rafn FAC European Centaury<br />

Centaurium exaltatum (Griseb.) W. Wight ex Piper FACW Desert Centaury<br />

Centaurium glanduliferum (Correll) B.L. Turner FACU Sticky Centaury<br />

Centaurium muehlenbergii (Griseb.) W. Wight ex Piper FACW Monterey Centaury<br />

Centaurium namophilum Reveal, Broome & Beatley FACW Spring‐Loving Centaury<br />

Centaurium nudicaule (Engelm.) B.L. Robins. FACW Santa Catalina Mountain Centaury<br />

Centaurium pulchellum (Sw.) Druce FACU Branched Centaury<br />

Centaurium tenuiflorum (Hoffmannsegg & Link) Fritsch FACW Slender Centaury<br />

Centaurium trichanthum (Griseb.) B.L. Robins. FAC Alkali Centaury<br />

Centromadia fitchii (Gray) Greene FACU Fitch's False Tarplant<br />

Centromadia parryi (Greene) Greene FACW Parry's False Tarplant<br />

Centromadia pungens (Hook. & Arn.) Greene FAC Pungent False Tarplant<br />

Cephalanthus occidentalis L. OBL Common Buttonbush<br />

Cerastium arvense L. FACU Field Mouse‐Ear Chickweed<br />

Cerastium axillare Correll FACU Trans‐Pecos Mouse‐Ear Chickweed<br />

Cerastium beeringianum Cham. & Schlecht. FACU Bering Sea Mouse‐Ear Chickweed<br />

Cerastium brachypodum (Engelm. ex Gray) B.L. Robins. FAC Short‐Stalk Mouse‐Ear Chickweed<br />

Cerastium fontanum Baumg. FACU Common Mouse‐Ear Chickweed<br />

Cerastium nutans Raf. FACU Nodding Mouse‐Ear Chickweed<br />

Ceratophyllum demersum L. OBL Coon's‐Tail<br />

Ceratopteris thalictroides (L.) Brongn. OBL Watersprite<br />

Chaerophyllum tainturieri Hook. FAC Hairy‐Fruit Chervil<br />

Chamaecrista fasciculata (Michx.) Greene FACU Sleepingplant<br />

Chamaecyparis lawsoniana (A. Murr.) Parl. FACU Port Or<strong>for</strong>d‐Cedar<br />

Chamaesyce hirta (L.) Millsp. FACU Pill‐Pod Sandmat<br />

Chamaesyce hooveri (L.C. Wheeler) Koutnik OBL Hoover's Sandmat<br />

Chamaesyce hypericifolia (L.) Millsp. FACU Graceful Sandmat<br />

Chamaesyce hyssopifolia (L.) Small FACU Hyssop‐Leaf Sandmat<br />

Chamaesyce nutans (Lag.) Small FACU Eyebane<br />

Chamaesyce prostrata (Ait.) Small FACU Prostrate Sandmat<br />

Chamaesyce serpens (Kunth) Small FACU Matted Sandmat<br />

Chamerion angustifolium (L.) Holub FACU Narrow‐Leaf Fireweed<br />

Chamerion latifolium (L.) Holub FACW Broad‐Leaf Fireweed<br />

Chasmanthium latifolium (Michx.) Yates FAC Indian Wood‐Oats<br />

Chelidonium majus L. FACU Greater Celandine<br />

Chenopodium album L. FACU Lamb's‐Quarters<br />

Chenopodium chenopodioides (L.) Aellen FACW Low Goosefoot<br />

Chenopodium foliosum (Moench) Aschers. FACU Leafy Goosefoot

---

Chenopodium fremontii S. Wats. FACU Fremont's Goosefoot<br />

Chenopodium glaucum L. FAC Oak‐Leaf Goosefoot<br />

Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats. FACU Narrow‐Leaf Goosefoot<br />

Chenopodium macrospermum Hook. f. FACW Large‐Seed Goosefoot<br />

Chenopodium murale L. FACU Nettle‐Leaf Goosefoot<br />

Chenopodium rubrum L. FACW Red Goosefoot<br />

Chilopsis linearis (Cav.) Sweet FACU Desert‐Willow<br />

Chionodoxa luciliae Boiss. FACU Glory‐of‐<strong>the</strong>‐Snow<br />

Chionophila jamesii Benth. FACU Rocky Mountain Snowlover<br />

Chloracantha spinosa (Benth.) Nesom FAC Mexican‐Devilweed<br />

Chloris gayana Kunth FACU Rhodes Grass<br />

Chloris virgata Sw. FACU Fea<strong>the</strong>r Windmill Grass<br />

Chrysosplenium glechomifolium Nutt. OBL Pacific Golden‐Saxifrage<br />

Chrysosplenium tetrandrum (Lund ex Malmgr.) Th. Fries OBL Nor<strong>the</strong>rn Golden‐Saxifrage<br />

Cicendia quadrangularis (Lam.) Griseb. FAC Oregon Timwort<br />

Cichorium intybus L. FACU Chicory<br />

Cicuta bulbifera L. OBL Bulblet‐Bearing Water‐Hemlock<br />

Cicuta douglasii (DC.) Coult. & Rose OBL <strong>West</strong>ern Water‐Hemlock<br />

Cicuta maculata L. OBL Spotted Water‐Hemlock<br />

Cinna bolanderi Scribn. FACW Bolander's Wood‐Reed<br />

Cinna latifolia (Trev. ex Goepp.) Griseb. FACW Slender Wood‐Reed<br />

Circaea alpina L. FAC Small Enchanter's‐Nightshade<br />

Cirsium andrewsii (Gray) Jepson FAC Franciscan Thistle<br />

Cirsium arizonicum (Gray) Petrak FACU Arizona Thistle<br />

Cirsium arvense (L.) Scop. FACU Canadian Thistle<br />

Cirsium crassicaule (Greene) Jepson OBL Slough Thistle<br />

Cirsium douglasii DC. OBL Douglas' Thistle<br />

Cirsium edule Nutt. FAC Edible Thistle<br />

Cirsium flodmanii (Rydb.) Arthur FAC Flodman's Thistle<br />

Cirsium foliosum (Hook.) DC. FAC Elk Thistle<br />

Cirsium fontinale (Greene) Jepson OBL Fountain Thistle<br />

Cirsium hydrophilum (Greene) Jepson OBL Suisun Thistle<br />

Cirsium mohavense (Greene) Petrak FACU Mojave Thistle<br />

Cirsium parryi (Gray) Petrak FACW Parry's Thistle<br />

Cirsium scariosum Nutt. FAC Meadow Thistle<br />

Cirsium tracyi (Rydb.) Petrak FACU Tracy's Thistle<br />

Cirsium undulatum (Nutt.) Spreng. FACU Wavy‐Leaf Thistle<br />

Cirsium vinaceum (Woot. & Standl.) Woot. & Standl. OBL Sacramento Mountain Thistle<br />

Cirsium vulgare (Savi) Ten. FACU Bull Thistle<br />

Cistan<strong>the</strong> ambigua (S. Wats.) Hershkovitz FAC Desert Pussypaws<br />

Cistan<strong>the</strong> rosea (S. Wats.) Hershkovitz FACU Rosy Pussypaws<br />

Cladium cali<strong>for</strong>nicum (S. Wats.) O'Neill OBL Cali<strong>for</strong>nia Saw‐Grass<br />

Cladium mariscus (L.) Pohl OBL Swamp Saw‐Grass<br />

Claytonia cordifolia S. Wats. FAC Heart‐Leaf Springbeauty<br />

Claytonia gypsophiloides Fisch. & C.A. Mey. FACU Gypsum Springbeauty<br />

Claytonia lanceolata Pall. ex Pursh FAC Lance‐Leaf Springbeauty<br />

Claytonia megarhiza (Gray) Parry ex S. Wats. FACU Alpine Springbeauty

---

Claytonia multiscapa Rydb. FAC Many‐Stem Springbeauty<br />

Claytonia nevadensis S. Wats. FAC Sierran Springbeauty<br />

Claytonia palustris Swanson & Kelley FACW Jonesville Springbeauty<br />

Claytonia parviflora Dougl. ex Hook. FACU Streambank Springbeauty<br />

Claytonia perfoliata Donn ex Willd. FAC Miner's‐Lettuce<br />

Claytonia sibirica L. FAC Siberian Springbeauty<br />

Claytonia washingtoniana (Suksdorf) Suksdorf FACU Washington Springbeauty<br />

Clematis ligusticifolia Nutt. FAC Deciduous Traveler's‐Joy<br />

Clematis pitcheri Torr. & Gray FACU Bluebill<br />

Clematis terniflora DC. FACU Sweet Autumn Virgin's‐Bower<br />

Cleome lutea Hook. FACU Yellow Spider‐Flower<br />

Cleome multicaulis DC. FACW Playa Spider‐Flower<br />

Cleome serrulata Pursh FACU Rocky Mountain Beeplant<br />

Cleomella brevipes S. Wats. FACW Short‐Stalk Stinkweed<br />

Cleomella longipes Torr. FACU Chiricahua Mountain Stinkweed<br />

Cleomella parviflora Gray FACW Small‐Flower Stinkweed<br />

Cleomella plocasperma S. Wats. FACW Alkali Stinkweed<br />

Clinopodium arkansanum (Nutt.) House FAC Limestone Wild Basil<br />

Clitoria mariana L. FACU Atlantic Pigeonwings<br />

Cocculus carolinus (L.) DC. FACU Carolina Coralbead<br />

Coeloglossum viride (L.) Hartman FAC Long‐Bract Frog Orchid<br />

Coix lacryma‐jobi L. FACW Job's‐Tears<br />

Coleanthus subtilis (Tratt.) Seidel OBL Moss Grass<br />

Collinsia tinctoria Hartw. ex Benth. FACU Tinctureplant<br />

Collomia linearis Nutt. FACU Narrow‐Leaf Mountain‐Trumpet<br />

Collomia rawsoniana Greene FACU Flaming Mountain‐Trumpet<br />

Comarum palustre L. OBL Purple Marshlocks<br />

Commelina benghalensis L. FACU Jio<br />

Commelina communis L. FAC Asiatic Dayflower<br />

Commelina erecta L. FACU White‐Mouth Dayflower<br />

Conioselinum pacificum (S. Wats.) Coult. & Rose FAC Pacific Hemlock‐Parsley<br />

Conioselinum scopulorum (Gray) Coult. & Rose FACW Rocky Mountain Hemlock‐Parsley<br />

Conium maculatum L. FACW Poison‐Hemlock<br />

Conoclinium dissectum Gray FACU Pinked Mistflower<br />

Convolvulus equitans Benth. FACU Texas Bindweed<br />

Conyza bonariensis (L.) Cronq. FACU Asthmaweed<br />

Conyza canadensis (L.) Cronq. FACU Canadian Horseweed<br />

Cooperia chlorosolen Herbert FACU Evening Rain‐Lily<br />

Coptis laciniata Gray FAC Oregon Goldthread<br />

Coptis trifolia (L.) Salisb. FACW Three‐Leaf Goldthread<br />

Corallorhiza striata Lindl. FACU Hooded Coralroot<br />

Corallorhiza trifida Chatelain FAC Yellow Coralroot<br />

Corallorhiza wisteriana Conrad FAC Spring Coralroot<br />

Cordylanthus eremicus (Coville & Morton) Munz FACW Desert Bird's‐Beak<br />

Cordylanthus maritimus Nutt. ex Benth. OBL Saltmarsh Bird's‐Beak<br />

Cordylanthus mollis Gray OBL Soft Bird's‐Beak<br />

Cordylanthus palmatus (Ferris) J.F. Macbr. OBL Palm‐Bract Bird's‐Beak

---

Cordylanthus ramosus Nutt. ex Benth. FACU Bushy Bird's‐Beak<br />

Cordylanthus tecopensis Munz & Roos FACW Tecopa Bird's‐Beak<br />

Coreopsis lanceolata L. FACU Lance‐Leaf Tickseed<br />

Coreopsis tinctoria Nutt. FACU Golden Tickseed<br />

Corispermum americanum (Nutt.) Nutt. FACU American Bugseed<br />

Corispermum hyssopifolium L. FACU Hyssop‐Leaf Bugseed<br />

Cornus alba L. FACW Red Osier<br />

Cornus canadensis L. FAC Canadian Bunchberry<br />

Cornus glabrata Benth. FACW Smooth‐Leaf Dogwood<br />

Cornus nuttallii Audubon ex Torr. & Gray FACU Pacific Flowering Dogwood<br />

Cornus sessilis Torr. ex Dur. FAC Black‐Fruit Dogwood<br />

Cortaderia jubata (Lem. ex Carr.) Stapf FACU Uruguayan Pampas Grass<br />

Cortaderia selloana (J.A. & J.H. Schultes) Aschers. & Graebn. FACU Selloa Pampus Grass<br />

Corydalis caseana Gray FACW Sierran Fumewort<br />

Corylus cornuta Marsh. FACU Beaked Hazelnut<br />

Corymbia citriodora (Hook.) K.D. Hill & L.A. Johnson FACU Lemon‐Scented Ghost‐Gum<br />

Cosmos bipinnatus Cav. FACW Garden Cosmos<br />

Cosmos parviflorus (Jacq.) Pers. FACU Southwestern Cosmos<br />

Cotula australis (Sieber ex Spreng.) Hook. f. FAC Australian Water‐Buttons<br />

Cotula coronopifolia L. OBL Common Brassbuttons<br />

Crassula aquatica (L.) Schoenl. OBL Water Pygmyweed<br />

Crassula connata (Ruiz & Pavón) Berger FAC Sand Pygmyweed<br />

Crassula saginoides (Maxim.) Bywater & Wickens OBL Wrinkle‐Seed Pygmyweed<br />

Crassula solieri (C. Gay) Meigen OBL Smooth‐Seed Pygmyweed<br />

Crassula tillaea Lester‐Garland FACU Moss Pygmyweed<br />

Crataegus douglasii Lindl. FAC Black Hawthorn<br />

Crataegus erythropoda Ashe FAC Cerro Hawthorn<br />

Crataegus monogyna Jacq. FAC English Hawthorn<br />

Crataegus rivularis Nutt. FAC River Hawthorn<br />

Crataegus saligna Greene FAC Willow Hawthorn<br />

Crataegus suksdorfii (Sarg.) Kruschke FAC Suksdorf's Hawthorn<br />

Crepis capillaris (L.) Wallr. FACU Smooth Hawk's‐Beard<br />

Crepis runcinata (James) Torr. & Gray FACU Fiddle‐Leaf Hawk's‐Beard<br />

Cressa truxillensis Kunth FACW Spreading Alkali‐Weed<br />

Crocosmia X crocosmiiflora (V. Lemoine) N.E. Br. FACU<br />

Crypsis alopecuroides (Piller & Mitterp.) Schrad. OBL Fox‐Tail Prickle Grass<br />

Crypsis schoenoides (L.) Lam. OBL Swamp Prickle Grass<br />

Crypsis vaginiflora (Forssk.) Opiz OBL African Prickle Grass<br />

Cryptantha crinita Greene FACU Sacramento Cat's‐Eye<br />

Cryptogramma stelleri (Gmel.) Prantl FACU Fragile Rockbrake<br />

Cyclachaena xanthiifolia (Nutt.) Fresen. FAC Carelessweed<br />

Cycloloma atriplicifolium (Spreng.) Coult. FACU Winged‐Pigweed<br />

Cyclospermum leptophyllum (Pers.) Sprague ex Britt. & Wilson FACU Marsh‐Parsley<br />

Cynodon dactylon (L.) Pers. FACU Bermuda Grass<br />

Cynoglossum officinale L. FACU Gypsy‐Flower<br />

Cynosurus cristatus L. FACU Crested Dog's‐Tail Grass<br />

Cyperus acuminatus Torr. & Hook. ex Torr. OBL Taper‐Tip Flat Sedge

---

Cyperus aggregatus (Willd.) Endl. FAC Inflated‐Scale Flat Sedge<br />

Cyperus amabilis Vahl FACU Foothill Flat Sedge<br />

Cyperus bipartitus Torr. OBL Shining Flat Sedge<br />

Cyperus croceus Vahl FAC Baldwin's Flat Sedge<br />

Cyperus dif<strong>for</strong>mis L. OBL Variable Flat Sedge<br />

Cyperus elegans L. FACW Royal Flat Sedge<br />

Cyperus eragrostis Lam. FACW Tall Flat Sedge<br />

Cyperus erythrorhizos Muhl. OBL Red‐Root Flat Sedge<br />

Cyperus esculentus L. FACW Chufa<br />

Cyperus fendlerianus Boeckl. FAC Fendler's Flat Sedge<br />

Cyperus flavescens L. OBL Yellow Flat Sedge<br />

Cyperus flavicomus Michx. FAC White‐Edge Flat Sedge<br />

Cyperus fuscus L. FAC Galingale<br />

Cyperus gracilis R. Br. FAC Slimjim Flat Sedge<br />

Cyperus hermaphroditus (Jacq.) Standl. FAC Hermaphrodite Flat Sedge<br />

Cyperus involucratus Rottb. FACW Alternate‐Leaf Flat Sedge<br />

Cyperus iria L. FACW Ricefield Flat Sedge<br />

Cyperus laevigatus L. FACW Smooth Flat Sedge<br />

Cyperus lupulinus (Spreng.) Marcks FACU Great Plains Flat Sedge<br />

Cyperus mutisii (Kunth) Griseb. FACU Mutis' Flat Sedge<br />

Cyperus niger Ruiz & Pavón FACW Black Flat Sedge<br />

Cyperus odoratus L. FACW Rusty Flat Sedge<br />

Cyperus onerosus M.C. Johnston FACW Plains Flat Sedge<br />

Cyperus owanii Boeckl. FAC Owan's Flat Sedge<br />

Cyperus papyrus L. OBL Papyrus Flat Sedge<br />

Cyperus parishii Britt. FACW Parish's Flat Sedge<br />

Cyperus retrorsus Chapman FAC Pine‐Barren Flat Sedge<br />

Cyperus rotundus L. FAC Purple Flat Sedge<br />

Cyperus schweinitzii Torr. FAC Sand Flat Sedge<br />

Cyperus seslerioides Kunth FAC Texas Flat Sedge<br />

Cyperus squarrosus L. OBL Awned Flat Sedge<br />

Cyperus strigosus L. FACW Straw‐Color Flat Sedge<br />

Cyperus tetragonus Ell. FACU Four‐Angle Flat Sedge<br />

Cyperus virens Michx. FACW Green Flat Sedge<br />

Cypripedium cali<strong>for</strong>nicum Gray OBL Cali<strong>for</strong>nia Lady's‐Slipper<br />

Cypripedium fasciculatum Kellogg ex S. Wats. FACU Clustered Lady's‐Slipper<br />

Cypripedium montanum Dougl. ex Lindl. FACU Mountain Lady's‐Slipper<br />

Cypripedium parviflorum Salisb. FACW Yellow Lady's‐Slipper<br />

Cypselea humifusa Turp. FACW Panal<br />

Cystopteris bulbifera (L.) Bernh. FAC Bulblet Bladder Fern<br />

Cystopteris fragilis (L.) Bernh. FACU Brittle Bladder Fern<br />

Cystopteris montana (Lam.) Bernh. ex Desv. FAC Mountain Bladder Fern<br />

Dactylis glomerata L. FACU Orchard Grass<br />

Damasonium cali<strong>for</strong>nicum Torr. OBL Fringed‐Water‐<strong>Plant</strong>ain<br />

Danthonia cali<strong>for</strong>nica Boland. FACU Cali<strong>for</strong>nia Wild Oat Grass<br />

Danthonia decumbens (L.) DC. FAC Common Heath Grass<br />

Danthonia intermedia Vasey FACU Timber Wild Oat Grass

---

Darlingtonia cali<strong>for</strong>nica Torr. OBL Cobraplant<br />

Darmera peltata (Torr. ex Benth.) Voss OBL Indian‐Rhubarb<br />

Dasiphora fruticosa (L.) Rydb. FAC Golden‐Hardhack<br />

Datisca glomerata (K. Presl) Baill. FACW Durango‐Root<br />

Deinandra fasciculata (DC.) Greene FACU Clustered Moonshine‐Daisy<br />

Deinandra paniculata (Gray) A. Davids. & Moxley FACU San Diego Moonshine‐Daisy<br />

Deiregyne confusa Garay FAC Rimrock Ladies'‐Braids<br />

Delosperma litorale (Kensit) L. Bolus FACU Delosperma<br />

Delphinium andesicola Ewan FACU Chiricahua Mountain Larkspur<br />

Delphinium barbeyi (Huth) Huth FAC Subalpine Larkspur<br />

Delphinium cali<strong>for</strong>nicum Torr. & Gray FACU Cali<strong>for</strong>nia Coast Larkspur<br />

Delphinium geraniifolium Rydb. FAC Clark Valley Larkspur<br />

Delphinium glaucescens Rydb. FACU Electric Peak Larkspur<br />

Delphinium glaucum S. Wats. FACW Tower Larkspur<br />

Delphinium hesperium Gray FAC Foothill Larkspur<br />

Delphinium multiplex (Ewan) C.L. Hitchc. FAC Kittitas Larkspur<br />

Delphinium nuttallianum Pritz. ex Walp. FAC Two‐Lobe Larkspur<br />

Delphinium nuttallii Gray FACU Upland Larkspur<br />

Delphinium polycladon Eastw. FACW Mountain‐Marsh Larkspur<br />

Delphinium recurvatum Greene FACU Byron Larkspur<br />

Delphinium sapellonis Cockerell FAC Sapello Canyon Larkspur<br />

Delphinium scopulorum Gray FAC Rocky Mountain Larkspur<br />

Delphinium uliginosum Curran OBL Swamp Larkspur<br />

Delphinium X burkei Greene (pro sp.) FACU<br />

Delphinium X occidentale (S. Wats.) S. Wats. (pro sp.) FACU<br />

Deschampsia brevifolia R. Br. FACW Short‐Leaf Hair Grass<br />

Deschampsia caespitosa (L.) Beauv. FACW Tufted Hair Grass<br />

Deschampsia danthonioides (Trin.) Munro FACW Annual Hair Grass<br />

Deschampsia elongata (Hook.) Munro FACW Slender Hair Grass<br />

Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn FACU Mountain Tansy‐Mustard<br />

Desmanthus illinoensis (Michx.) MacM. ex B.L. Robins. & Fern. FACU Prairie Bundle‐Flower<br />

Desmanthus virgatus (L.) Willd. FACU Wild Tantan<br />

Dianthus deltoides L. FAC Maiden Pink<br />

Dicentra <strong>for</strong>mosa (Andrews) Walp. FACU Pacific Bleedinghearts<br />

Dichan<strong>the</strong>lium acuminatum (Sw.) Gould & C.A. Clark FAC Tapered Rosette Grass<br />

Dichan<strong>the</strong>lium oligosan<strong>the</strong>s (J.A. Schultes) Gould FACU Heller's Rosette Grass<br />

Dichan<strong>the</strong>lium sphaerocarpon (Ell.) Gould FACU Round‐Seed Rosette Grass<br />

Dichelostemma capitatum (Benth.) Wood FACU Bluedicks<br />

Dichondra micrantha Urban FACW Asian Pony's‐Foot<br />

Dichondra sericea Sw. FACU Silver‐Leaf Pony's‐Foot<br />

Didiplis diandra (Nutt. ex DC.) Wood OBL Water‐Purslane<br />

Dieteria bigelovii (Gray) D. Morgan & R.L. Hartman FACW Bigelow's False Tansy‐Aster<br />

Digitalis purpurea L. FACU Purple Foxglove<br />

Digitaria ciliaris (Retz.) Koel. FACU Sou<strong>the</strong>rn Crab Grass<br />

Digitaria eriantha Steud. FACU Pangola Grass<br />

Digitaria ischaemum (Schreb. ex Schweig.) Schreb. ex Muhl. FACU Smooth Crab Grass<br />

Digitaria sanguinalis (L.) Scop. FACU Hairy Crab Grass

---

Diodia teres Walt. FACU Poorjoe<br />

Diospyros virginiana L. FAC Common Persimmon<br />

Diphasiastrum complanatum (L.) Holub FAC<br />

Diplacus parviflorus Greene FACU Island Bush‐Monkey‐Flower<br />

Dipsacus fullonum L. FAC Fuller's Teasel<br />

Dirca occidentalis Gray FAC <strong>West</strong>ern Lea<strong>the</strong>rwood<br />

Distichlis spicata (L.) Greene FAC Coastal Salt Grass<br />

Dodeca<strong>the</strong>on conjugens Greene FACU Bonneville Shootingstar<br />

Dodeca<strong>the</strong>on dentatum Hook. FACW White Shootingstar<br />

Dodeca<strong>the</strong>on ellisiae Standl. FACW<br />

Dodeca<strong>the</strong>on jeffreyi Van Houtte FACW Tall Mountain Shootingstar<br />

Dodeca<strong>the</strong>on poeticum Henderson FAC Poet's Shootingstar<br />

Dodeca<strong>the</strong>on pulchellum (Raf.) Merr. FACW Dark‐Throat Shootingstar<br />

Dodeca<strong>the</strong>on redolens (Hall) H.J. Thompson OBL Scented Shootingstar<br />

Dodeca<strong>the</strong>on subalpinum Eastw. FACU Sierran Shootingstar<br />

Dodonaea viscosa Jacq. FACU Florida Hopbush<br />

Dopatrium junceum (Roxb.) Buch.‐Ham. ex Benth. OBL Horsefly's‐Eye<br />

Downingia bacigalupii Weiler OBL Bach's Calico‐Flower<br />

Downingia bella Hoover OBL Hoover's Calico‐Flower<br />

Downingia bicornuta Gray OBL Double‐Horn Calico‐Flower<br />

Downingia concolor Greene OBL Maroon‐Spot Calico‐Flower<br />

Downingia cuspidata (Greene) Greene ex Jepson OBL Too<strong>the</strong>d Calico‐Flower<br />

Downingia elegans (Dougl. ex Lindl.) Torr. OBL Elegant Calico‐Flower<br />

Downingia insignis Greene OBL Harlequin Calico‐Flower<br />

Downingia laeta (Greene) Greene OBL Great Basin Calico‐Flower<br />

Downingia montana Greene OBL Sierran Calico‐Flower<br />

Downingia ornatissima Greene OBL Folded Calico‐Flower<br />

Downingia pulchella (Lindl.) Torr. OBL Flat‐Face Calico‐Flower<br />

Downingia pusilla (G. Don) Torr. OBL Dwarf Calico‐Flower<br />

Downingia yina Applegate OBL Cascade Calico‐Flower<br />

Draba albertina Greene FAC Slender Whitlow‐Grass<br />

Draba aurea Vahl ex Hornem. FACU Golden Whitlow‐Grass<br />

Draba helleriana Greene FAC Heller's Whitlow‐Grass<br />

Draba lonchocarpa Rydb. FACU Lance‐Pod Whitlow‐Grass<br />

Draba paucifructa Clokey & C.L. Hitchc. FAC Charleston Mountain Whitlow‐Grass<br />

Draba praealta Greene FACU Tall Whitlow‐Grass<br />

Draba spectabilis Greene FACU Showy Whitlow‐Grass<br />

Draba stenoloba Ledeb. FACU Alaska Whitlow‐Grass<br />

Dracocephalum parviflorum Nutt. FACU American Dragonhead<br />

Dracopis amplexicaulis (Vahl) Cass. FACW Clasping‐Coneflower<br />

Drosera aliciae Raym.‐Hamet OBL Australian Sundew<br />

Drosera anglica Huds. OBL English Sundew<br />

Drosera capensis L. OBL Cape Sundew<br />

Drosera rotundifolia L. OBL Round‐Leaf Sundew<br />

Drosera tracyi Macfarlane OBL Tracy's Sundew<br />

Drosera X hybrida Macfarlane (pro sp.) OBL<br />

Drosera X obovata Mert. & Koch (pro sp.) OBL

---

Dryas drummondii Richards. ex Hook. FACU Yellow Mountain‐Avens<br />

Drymaria pachyphylla Woot. & Standl. FACU Thick‐Leaf Drymary<br />

Drymocallis arguta (Pursh) Rydb. FACU<br />

Dryopteris carthusiana (Vill.) H.P. Fuchs FAC Spinulose Wood Fern<br />

Dryopteris cristata (L.) Gray FACW Crested Wood Fern<br />

Dryopteris expansa (K. Presl) Fraser‐Jenkins & Jermy FACW Spreading Wood Fern<br />

Dudleya variegata (S. Wats.) Moran FACU Variegated Live‐Forever<br />

Dulichium arundinaceum (L.) Britt. OBL Three‐Way Sedge<br />

Dysphania ambrosioides (L.) Mosyakin & Clemants FAC Mexican‐Tea<br />

Dysphania botrys (L.) Mosyakin & Clemants FACU Jerusalem‐Oak<br />

Echinochloa colona (L.) Link FAC Jungle‐Rice<br />

Echinochloa crus‐galli (L.) Beauv. FACW Large Barnyard Grass<br />

Echinochloa crus‐pavonis (Kunth) J.A. Schultes FACW Gulf Cock's‐Spur Grass<br />

Echinochloa muricata (Beauv.) Fern. FACW Rough Barnyard Grass<br />

Echinochloa oryzicola (Vasinger) Vasinger FACW Rice‐Field Grass<br />

Echinochloa oryzoides (Ard.) Fritsch OBL Early Water Grass<br />

Echinochloa walteri (Pursh) Heller OBL Long‐Awn Cock's‐Spur Grass<br />

Echinocystis lobata (Michx.) Torr. & Gray FACU Wild Cucumber<br />

Echinodorus berteroi (Spreng.) Fassett OBL Upright Burrhead<br />

Echinopepon wrightii (Gray) S. Wats. FAC Wild Balsam‐Apple<br />

Eclipta prostrata (L.) L. FAC False Daisy<br />

Egeria densa Planch. OBL Brazilian‐Waterweed<br />

Eichhornia crassipes (Mart.) Solms OBL Common Water‐Hyacinth<br />

Elaeagnus angustifolia L. FAC Russian‐Olive<br />

Elaeagnus commutata Bernh. ex Rydb. FAC American Silver‐Berry<br />

Elatine ambigua Wight OBL Asian Waterwort<br />

Elatine brachysperma Gray OBL Short‐Seed Waterwort<br />

Elatine cali<strong>for</strong>nica Gray OBL Cali<strong>for</strong>nia Waterwort<br />

Elatine chilensis Gray OBL Chilean Waterwort<br />

Elatine heterandra Mason OBL Mosquito Waterwort<br />

Elatine rubella Rydb. OBL Red‐Stem Waterwort<br />

Eleocharis acicularis (L.) Roemer & J.A. Schultes OBL Needle Spike‐Rush<br />

Eleocharis albida Torr. OBL White Spike‐Rush<br />

Eleocharis atropurpurea (Retz.) J.& K. Presl FACW Purple Spike‐Rush<br />

Eleocharis bella (Piper) Svens. FACW Delicate Spike‐Rush<br />

Eleocharis bolanderi Gray FACW Bolander's Spike‐Rush<br />

Eleocharis compressa Sullivant FACW Flat‐Stem Spike‐Rush<br />

Eleocharis cylindrica Buckl. OBL Cylinder Spike‐Rush<br />

Eleocharis elliptica Kunth OBL Elliptic Spike‐Rush<br />

Eleocharis engelmannii Steud. OBL Engelmann's Spike‐Rush<br />

Eleocharis flavescens (Poir.) Urban OBL Yellow Spike‐Rush<br />

Eleocharis geniculata (L.) Roemer & J.A. Schultes OBL Capitate Spike‐Rush<br />

Eleocharis montana (Kunth) Roemer & J.A. Schultes OBL Mountain Spike‐Rush<br />

Eleocharis montevidensis Kunth FACW Sand Spike‐Rush<br />

Eleocharis obtusa (Willd.) J.A. Schultes OBL Blunt Spike‐Rush<br />

Eleocharis pachycarpa Desv. OBL Black‐Sand Spike‐Rush<br />

Eleocharis palustris (L.) Roemer & J.A. Schultes OBL Common Spike‐Rush

---

Eleocharis parishii Britt. FACW Parish's Spike‐Rush<br />

Eleocharis parvula (Roemer & J.A. Schultes) Link ex Bluff, Nee OBL Little‐Head Spike‐Rush<br />

Eleocharis quadrangulata (Michx.) Roemer & J.A. Schultes OBL Square‐Stem Spike‐Rush<br />

Eleocharis quinqueflora (F.X. Hartmann) Schwarz OBL Few‐Flower Spike‐Rush<br />

Eleocharis radicans (A. Dietr.) Kunth OBL Rooted Spike‐Rush<br />

Eleocharis rostellata (Torr.) Torr. OBL Beaked Spike‐Rush<br />

Eleocharis suksdorfiana Beauv. OBL Suksdorf's Spike‐Rush<br />

Eleocharis torticulmis S.G. Sm. OBL Twist‐Stem Spike‐Rush<br />

Ellisia nyctelea (L.) L. FACU Aunt Lucy<br />

Elodea bifoliata St. John OBL Two‐Leaf Waterweed<br />

Elodea canadensis Michx. OBL Canadian Waterweed<br />

Elodea nuttallii (Planch.) St. John OBL <strong>West</strong>ern Waterweed<br />

Elymus canadensis L. FAC Nodding Wild Rye<br />

Elymus curvatus Piper FAC Awnless Wild Rye<br />

Elymus elymoides (Raf.) Swezey FACU <strong>West</strong>ern Bottle‐Brush Grass<br />

Elymus glaucus Buckl. FACU Blue Wild Rye<br />

Elymus hystrix L. FACU Eastern Bottle‐Brush Grass<br />

Elymus repens (L.) Gould FAC Creeping Wild Rye<br />

Elymus trachycaulus (Link) Gould ex Shinners FACU Slender Wild Rye<br />

Elymus virginicus L. FACW Virginia Wild Rye<br />

Elymus wawawaiensis J. Carlson & Barkworth FACU Wawawai Wild Rye<br />

Empetrum nigrum L. FAC Black Crowberry<br />

Epilobium anagallidifolium Lam. FACU Pimpernel Willowherb<br />

Epilobium campestre (Jepson) Hoch & W.L. Wagner OBL Smooth Willowherb<br />

Epilobium ciliatum Raf. FACW Fringed Willowherb<br />

Epilobium clavatum Trel. FACU Talus Willowherb<br />

Epilobium cleistogamum (Curran) Hoch & Raven OBL Selfing Willowherb<br />

Epilobium densiflorum (Lindl.) Hoch & Raven FACW Dense‐Flower Willowherb<br />

Epilobium glaberrimum Barbey FACW Glaucous Willowherb<br />

Epilobium halleanum Hausskn. FACW Glandular Willowherb<br />

Epilobium hirsutum L. FACW Codlins‐and‐Cream<br />

Epilobium hornemannii Reichenb. FACW Hornemann's Willowherb<br />

Epilobium howellii Hoch FACW Yuba Pass Willowherb<br />

Epilobium lactiflorum Hausskn. FACW White‐Flower Willowherb<br />

Epilobium leptocarpum Hausskn. FACW Slender‐Fruit Willowherb<br />

Epilobium leptophyllum Raf. FACW Bog Willowherb<br />

Epilobium luteum Pursh FACW Yellow Willowherb<br />

Epilobium minutum Lindl. ex Lehm. FACU Chaparral Willowherb<br />

Epilobium obcordatum Gray FACU Rockfringe<br />

Epilobium oreganum Greene OBL Grants Pass Willowherb<br />

Epilobium oregonense Hausskn. OBL Oregon Willowherb<br />

Epilobium pallidum (Eastw.) Hoch & Raven FAC Large‐Flower Willowherb<br />

Epilobium palustre L. OBL Marsh Willowherb<br />

Epilobium saximontanum Hausskn. FACW Rocky Mountain Willowherb<br />

Epilobium siskiyouense (Munz) Hoch & Raven FACW Siskiyou Willowherb<br />

Epilobium suffruticosum Nutt. FACU Shrubby Willowherb<br />

Epilobium torreyi (S. Wats.) Hoch & Raven FACW Brook Willowherb

---

Epipactis gigantea Dougl. ex Hook. OBL Giant Helleborine<br />

Epipactis helleborine (L.) Crantz FACU Helleborine<br />

Equisetum arvense L. FAC Field Horsetail<br />

Equisetum fluviatile L. OBL Water Horsetail<br />

Equisetum hyemale L. FACW Tall Scouring‐Rush<br />

Equisetum laevigatum A. Braun FACW Smooth Scouring‐Rush<br />

Equisetum palustre L. FACW Marsh Horsetail<br />

Equisetum scirpoides Michx. FAC Dwarf Scouring‐Rush<br />

Equisetum sylvaticum L. FAC Woodland Horsetail<br />

Equisetum telmateia Ehrh. FACW Giant Horsetail<br />

Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr FACW Variegated Scouring‐Rush<br />

Equisetum X ferrissii Clute (pro sp.) FACW<br />

Equisetum X litorale Kühlewein ex Rupr. (pro sp.) OBL<br />

Equisetum X nelsonii (A.A. Eat.) Schaffn. (pro sp.) FACW<br />

Eragrostis cilianensis (All.) Vign. ex Janchen FACU Stink Grass<br />

Eragrostis frankii C.A. Mey. ex Steud. FACW Sandbar Love Grass<br />

Eragrostis hypnoides (Lam.) B.S.P. OBL Teal Love Grass<br />

Eragrostis lugens Nees FACU Mourning Love Grass<br />

Eragrostis lutescens Scribn. FACU Six‐Weeks Love Grass<br />

Eragrostis mexicana (Hornem.) Link FACU Mexican Love Grass<br />

Eragrostis pectinacea (Michx.) Nees ex Jedw. FAC Purple Love Grass<br />

Eragrostis pilosa (L.) Beauv. FACU Indian Love Grass<br />

Erechtites hieraciifolius (L.) Raf. ex DC. FACU American Burnweed<br />

Eremogone capillaris (Poir.) Fenzl FACU Slender Mountain Sandwort<br />

Erigeron acris L. FACU Bitter Fleabane<br />

Erigeron annuus (L.) Pers. FACU Eastern Daisy Fleabane<br />

Erigeron coulteri Porter FACW Large Mountain Fleabane<br />

Erigeron elatior (Gray) Greene FAC Tall Fleabane<br />

Erigeron flagellaris Gray FACU Trailing Fleabane<br />

Erigeron glabellus Nutt. FAC Streamside Fleabane<br />

Erigeron glacialis (Nutt.) A. Nels. FAC Glacier Fleabane<br />

Erigeron glaucus Ker‐Gawl. FACU Seaside Fleabane<br />

Erigeron humilis Graham FACW Arctic Alpine Fleabane<br />

Erigeron kachinensis Welsh & Moore OBL Kachina Fleabane<br />

Erigeron karvinskianus DC. FAC Latin American Fleabane<br />

Erigeron lanatus Hook. FACU Woolly Fleabane<br />

Erigeron lonchophyllus Hook. FACW Short‐Ray Fleabane<br />

Erigeron melanocephalus (A. Nels.) A. Nels. FAC Black‐Head Fleabane<br />

Erigeron nivalis Nutt. FAC Scotter's Fleabane<br />

Erigeron philadelphicus L. FACU Philadelphia Fleabane<br />

Erigeron strigosus Muhl. ex Willd. FACU Prairie Fleabane<br />

Eriocaulon cinereum R. Br. OBL Ashy Pipewort<br />

Eriocaulon microcephalum Kunth OBL Small‐Head Pipewort<br />

Eriochloa acuminata (J. Presl) Kunth FACW Taper‐Tip Cup Grass<br />

Eriochloa aristata Vasey FACW Bearded Cup Grass<br />

Eriochloa contracta A.S. Hitchc. FAC Prairie Cup Grass<br />

Eriochloa fatmensis (Hochst. & Steud.) W.D. Clayton FAC Tropical Cup Grass

---

Eriogonum ampullaceum J.T. Howell FACU Mono Wild Buckwheat<br />

Eriogonum argophyllum Reveal FACW Sulphur Hot Springs Wild Buckwheat<br />

Eriogonum ovalifolium Nutt. FACU Cushion Wild Buckwheat<br />

Eriophorum angustifolium Honckeny OBL Tall Cotton‐Grass<br />

Eriophorum callitrix Cham. ex C.A. Mey. FACW Arctic Cotton‐Grass<br />

Eriophorum chamissonis C.A. Mey. OBL Chamisso's Cotton‐Grass<br />

Eriophorum crinigerum (Gray) Beetle OBL Meadow's Cotton‐Grass<br />

Eriophorum gracile W.D.J. Koch OBL Slender Cotton‐Grass<br />

Eriophorum scheuchzeri Hoppe OBL White Cotton‐Grass<br />

Eriophorum viridicarinatum (Engelm.) Fern. OBL Tassel Cotton‐Grass<br />

Erodium botrys (Cav.) Bertol. FACU Long‐Beak Stork's‐Bill<br />

Eryngium alismifolium Greene FACW Modoc Eryngo<br />

Eryngium aristulatum Jepson OBL Cali<strong>for</strong>nia Eryngo<br />

Eryngium armatum (S. Wats.) Coult. & Rose FACW Coastal Eryngo<br />

Eryngium articulatum Hook. OBL Bee‐Thistle<br />

Eryngium castrense Jepson OBL Great Valley Eryngo<br />

Eryngium constancei Sheikh OBL Loch Lomond Eryngo<br />

Eryngium heterophyllum Engelm. FACW Wright's Eryngo<br />

Eryngium lemmonii Coult. & Rose FAC Chiricahua Mountain Eryngo<br />

Eryngium mathiasiae Sheikh OBL Mathias' Eryngo<br />

Eryngium nasturtiifolium Juss. ex Delar. f. FACW Hierba‐Del‐Sapo<br />

Eryngium petiolatum Hook. OBL Rush‐Leaf Eryngo<br />

Eryngium phyteumae Delar. f. OBL Huachuca Mountain Eryngo<br />

Eryngium pinnatisectum Jepson OBL Tuolumne Eryngo<br />

Eryngium racemosum Jepson OBL Delta Eryngo<br />

Eryngium sparganophyllum Hemsl. OBL Arizona Eryngo<br />

Eryngium spinosepalum Mathias FACW Spiny‐Sepal Eryngo<br />

Eryngium vaseyi Coult. & Rose FACW Coyote‐Thistle<br />

Erysimum cheiranthoides L. FACU Worm‐Seed Wallflower<br />

Erythronium grandiflorum Pursh FACU Yellow Avalanche‐Lily<br />

Erythronium revolutum Sm. FAC Mahogany Fawn‐Lily<br />

Eucalyptus camaldulensis Dehnhardt FAC River Red Gum<br />

Euonymus occidentalis Nutt. ex Torr. FACW <strong>West</strong>ern Wahoo<br />

Euphorbia spathulata Lam. FAC Warty Spurge<br />

Euphorbia tirucalli L. FACU False Caper<br />

Eurybia merita (A. Nels.) Nesom FACU Behring Wood‐Aster<br />

Eurybia sibirica (L.) Nesom FAC Siberian Wood‐Aster<br />

Eustoma exaltatum (L.) Salisb. OBL Catchfly Prairie‐Gentian<br />

Euthamia graminifolia (L.) Nutt. FAC Flat‐Top Goldentop<br />

Euthamia occidentalis Nutt. FACW <strong>West</strong>ern Goldentop<br />

Eutrochium maculatum (L.) E. Lamont OBL Spotted Trumpetweed<br />

Fallopia convolvulus (L.) A. Löve FACU Black‐Bindweed<br />

Fallopia japonica (Houtt.) R. Decr. FACU Japanese Black‐Bindweed<br />

Fallopia sachalinensis (F. Schmidt) R. Decr. FACU Giant Black‐Bindweed<br />

Fatoua villosa (Thunb.) Nakai FAC Hairy Crabweed<br />

Festuca arundinacea Schreb. FACU<br />

Festuca cali<strong>for</strong>nica Vasey FACU Cali<strong>for</strong>nia Fescue

---

Festuca idahoensis Elmer FACU Bluebunch Fescue<br />

Festuca ovina L. FACU Sheep Fescue<br />

Festuca pratensis Huds. FACU Meadow Fescue<br />

Festuca rubra L. FAC Red Fescue<br />

Festuca subulata Trin. FACU Bearded Fescue<br />

Ficus carica L. FACU Common Fig<br />

Fimbristylis annua (All.) Roemer & J.A. Schultes FAC Annual Fimbry<br />

Fimbristylis autumnalis (L.) Roemer & J.A. Schultes OBL Slender Fimbry<br />

Fimbristylis littoralis Gaud. OBL Grass‐Like Fimbry<br />

Fimbristylis puberula (Michx.) Vahl FACW Hairy Fimbry<br />

Fimbristylis <strong>the</strong>rmalis S. Wats. OBL Hot Springs Fimbry<br />

Fimbristylis vahlii (Lam.) Link FACW Vahl's Fimbry<br />

Flaveria campestris J.R. Johnston FACW Alkali Yellowtops<br />

Flaveria chlorifolia Gray FACW Clasping Yellowtops<br />

Flaveria trinervia (Spreng.) C. Mohr FAC Clustered Yellowtops<br />

Fleischmannia sonorae (Gray) King & H.E. Robins. FAC Sonoran Slender‐Thoroughwort<br />

Floerkea proserpinacoides Willd. FACW False Mermaidweed<br />

Forestiera pubescens Nutt. FACU Stretchberry<br />

Fragaria virginiana Duchesne FACU Virginia Strawberry<br />

Frangula alnus P. Mill. FAC Glossy False Buckthorn<br />

Frangula betulifolia (Greene) V. Grub. FAC Birch‐Leaf False Buckthorn<br />

Frangula purshiana (DC.) Cooper FACU Cascara False Buckthorn<br />

Frankenia palmeri S. Wats. FACW Palmer's Sea‐Heath<br />

Frankenia salina (Molina) I.M. Johnston FACW Alkali Sea‐Heath<br />

Fraxinus americana L. FACU White Ash<br />

Fraxinus latifolia Benth. FACW Oregon Ash<br />

Fraxinus pennsylvanica Marsh. FACW Green Ash<br />

Fraxinus velutina Torr. FAC Velvet Ash<br />

Fritillaria agrestis Greene FAC Stinkbells<br />

Fuchsia magellanica Lam. FACU Hardy Fuchsia<br />

Fuirena simplex Vahl OBL <strong>West</strong>ern Umbrella Sedge<br />

Fuirena squarrosa Michx. OBL Hairy Umbrella Sedge<br />

Funastrum cynanchoides (Dcne.) Schlechter FACU Fringed Twinevine<br />

Gaillardia flava Rydb. FACU Yellow Blanket‐Flower<br />

Gaillardia pulchella Foug. FACU Firewheel<br />

Galeopsis tetrahit L. FACU Brittle‐Stem Hemp‐Nettle<br />

Galium aparine L. FACU Sticky‐Willy<br />

Galium boreale L. FACU Nor<strong>the</strong>rn Bedstraw<br />

Galium divaricatum Pourret ex Lam. FACU Lamarck's Bedstraw<br />

Galium mexicanum Kunth FAC Mexican Bedstraw<br />

Galium microphyllum Gray FACU Bracted Bedstraw<br />

Galium trifidum L. FACW Three‐Petal Bedstraw<br />

Galium triflorum Michx. FACU Fragrant Bedstraw<br />

Galium uncinulatum DC. FAC Bristly Bedstraw<br />

Gamochaeta purpurea (L.) Cabrera FACU Spoon‐Leaf Purple Everlasting<br />

Gastridium phleoides (Nees & Meyen) C.E. Hubbard FACU Nit Grass<br />

Gaul<strong>the</strong>ria humifusa (Graham) Rydb. FACW Alpine Spicy‐Wintergreen

---

Gaul<strong>the</strong>ria ovatifolia Gray FAC <strong>West</strong>ern Teaberry<br />

Gaul<strong>the</strong>ria shallon Pursh FACU Salal<br />

Gaura neomexicana Woot. FACW New Mexico Beeblossom<br />

Gayophytum humile Juss. FAC Dwarf Groundsmoke<br />

Gayophytum racemosum Torr. & Gray FAC Black‐Foot Groundsmoke<br />

Gentiana affinis Griseb. FACU Pleated Gentian<br />

Gentiana algida Pallas FACW Whitish Gentian<br />

Gentiana calycosa Griseb. FACW Rainier Pleated Gentian<br />

Gentiana douglasiana Bong. OBL Swamp Gentian<br />

Gentiana fremontii Torr. FACW Moss Gentian<br />

Gentiana glauca Pallas FAC Pale Gentian<br />

Gentiana newberryi Gray FACW Alpine Gentian<br />

Gentiana parryi Engelm. FAC Parry's Gentian<br />

Gentiana prostrata Haenke FACW Pygmy Gentian<br />

Gentiana sceptrum Griseb. OBL King's‐Scepter Gentian<br />

Gentiana setigera Gray OBL Mendocino Gentian<br />

Gentianella amarella (L.) Börner FACW Autumn Dwarf‐Gentian<br />

Gentianella propinqua (Richards.) J. Gillett FACW Four‐Part Dwarf‐Gentian<br />

Gentianella tenella (Rottb.) Börner FACW Dane's Dwarf‐Gentian<br />

Gentianella wrightii (Gray) Holub OBL Wright's Dwarf‐Gentian<br />

Gentianopsis barbellata (Engelm.) Iltis FACW Perennial Fringed‐Gentian<br />

Gentianopsis holopetala (Gray) Iltis OBL Sierran Fringed‐Gentian<br />

Gentianopsis simplex (Gray) Iltis FACW One‐Flower Fringed‐Gentian<br />

Gentianopsis <strong>the</strong>rmalis (Kuntze) Iltis FACW Rocky Mountain Fringed‐Gentian<br />

Geocaulon lividum (Richards.) Fern. FAC False Toadflax<br />

Geranium caespitosum James FAC Purple Cluster Crane's‐Bill<br />

Geranium cali<strong>for</strong>nicum G.N. & F.F. Jones FAC Cali<strong>for</strong>nia Crane's‐Bill<br />

Geranium richardsonii Fisch. & Trautv. FACU White Crane's‐Bill<br />

Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey. FAC Sticky Purple Crane's‐Bill<br />

Geum aleppicum Jacq. FAC Yellow Avens<br />

Geum macrophyllum Willd. FACW Large‐Leaf Avens<br />

Geum rivale L. FACW Purple Avens<br />

Geum rossii (R. Br.) Ser. FACU Ross' Avens<br />

Geum triflorum Pursh FACU Old‐Man's‐Whiskers<br />

Githopsis diffusa Gray FAC San Gabriel Bluecup<br />

Githopsis specularioides Nutt. FACU Common Bluecup<br />

Glaux maritima L. FACW Sea‐Milkwort<br />

Glechoma hederacea L. FACU Groundivy<br />

Gleditsia triacanthos L. FAC Honey‐Locust<br />

Glinus lotoides L. OBL Lotus Sweetjuice<br />

Glinus radiatus (Ruiz & Pavón) Rohrb. FACW Spreading Sweetjuice<br />

Glyceria borealis (Nash) Batchelder OBL Small Floating Manna Grass<br />

Glyceria declinata Brébiss. FACW Waxy Manna Grass<br />

Glyceria elata (Nash ex Rydb.) M.E. Jones OBL Tall Manna Grass<br />

Glyceria fluitans (L.) R. Br. OBL Water Manna Grass<br />

Glyceria grandis S. Wats. OBL American Manna Grass<br />

Glyceria leptostachya Buckl. OBL Slender‐Spike Manna Grass

---

Glyceria striata (Lam.) A.S. Hitchc. OBL Fowl Manna Grass<br />

Glyceria X occidentalis (Piper) J.C. Nels. OBL<br />

Glycyrrhiza lepidota Pursh FAC American Licorice<br />

Gnaphalium exilifolium A. Nels. FACW Slender Cudweed<br />

Gnaphalium palustre Nutt. FACW <strong>West</strong>ern Marsh Cudweed<br />

Gnaphalium uliginosum L. FAC Marsh Cudweed<br />

Goodmania luteola (Parry) Reveal & Ertter FACW Yellow Spinecape<br />

Goodyera oblongifolia Raf. FACU Green‐Leaf Rattlesnake‐<strong>Plant</strong>ain<br />

Goodyera repens (L.) R. Br. ex Ait. f. FACU Dwarf Rattlesnake‐<strong>Plant</strong>ain<br />

Graphephorum wolfii (Vasey) Vasey ex Coult. FACU<br />

Gratiola ebracteata Benth. ex A. DC. OBL Bractless Hedge‐Hyssop<br />

Gratiola heterosepala Mason & Bacig. OBL Boggs Lake Hedge‐Hyssop<br />

Gratiola neglecta Torr. OBL Clammy Hedge‐Hyssop<br />

Grindelia ciliata (Nutt.) Spreng. FACU Spanishgold<br />

Grindelia fraxinopratensis Reveal & Beatley FACW Ash Meadows Gumweed<br />

Grindelia hirsutula Hook. & Arn. FACW Hairy Gumweed<br />

Grindelia integrifolia DC. FACW Puget Sound Gumweed<br />

Grindelia squarrosa (Pursh) Dunal FACU Curly‐Cup Gumweed<br />

Gymnocarpium dryopteris (L.) Newman FAC Nor<strong>the</strong>rn Oak Fern<br />

Gymnosteris parvula Heller FAC Small‐Flower Starlet<br />

Hackelia floribunda (Lehm.) I.M. Johnston FACU Many‐Flower Stickseed<br />

Hackelia micrantha (Eastw.) J.L. Gentry FACU Blue Stickseed<br />

Hainardia cylindrica (Willd.) W. Greuter FACW Barb Grass<br />

Halenia rothrockii Gray FAC Mt. Graham Spurred‐Gentian<br />

Halodule wrightii Aschers. OBL Shoalweed<br />

Haloragis erecta (Banks ex Murr.) Oken FAC Erect Seaberry<br />

Hamamelis virginiana L. FACU American Witch‐Hazel<br />

Harrimanella stelleriana (Pallas) Coville FACU Alaska Bell‐Hea<strong>the</strong>r<br />

Hastingsia alba (Dur.) S. Wats. OBL White Rush‐Lily<br />

Hedysarum alpinum L. FACU Alpine Sweet‐Vetch<br />

Heimia salicifolia (Kunth) Link FACW Shrubby‐Yellowcrest<br />

Helenium amarum (Raf.) H. Rock FACU Yellowdicks<br />

Helenium arizonicum Blake FACW Arizona Sneezeweed<br />

Helenium autumnale L. FACW Fall Sneezeweed<br />

Helenium bigelovii Torr. & Gray FACW Bigelow's Sneezeweed<br />

Helenium bolanderi Gray FACW Coastal Sneezeweed<br />

Helenium microcephalum DC. FACW Small‐Head Sneezeweed<br />

Helenium puberulum DC. FACW Rosilla<br />

Helenium thurberi Gray OBL Thurber's Sneezeweed<br />

Helian<strong>the</strong>lla quinquenervis (Hook.) Gray FACU Nodding Dwarf‐Sunflower<br />

Helianthus annuus L. FACU Common Sunflower<br />

Helianthus bolanderi Gray FAC Bolander's Sunflower<br />

Helianthus cali<strong>for</strong>nicus DC. OBL Cali<strong>for</strong>nia Sunflower<br />

Helianthus ciliaris DC. FAC Texas‐Blueweed<br />

Helianthus exilis Gray FACU Serpentine Sunflower<br />

Helianthus grosseserratus Martens FAC Saw‐Tooth Sunflower<br />

Helianthus nuttallii Torr. & Gray FACW Nuttall's Sunflower

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Helianthus paradoxus Heiser FACW Trans‐Pecos Sunflower<br />

Heliopsis helianthoides (L.) Sweet FACU Smooth Oxeye<br />

Heliotropium curassavicum L. FACU Seaside Heliotrope<br />

Heliotropium glabriusculum (Torr.) Gray FACW Green‐Eye Heliotrope<br />

Heliotropium greggii Torr. FAC Fragrant Heliotrope<br />

Heliotropium molle (Torr.) I.M. Johnston FACW Soft Heliotrope<br />

Heliotropium procumbens P. Mill. FACW Four‐Spike Heliotrope<br />

Helmintho<strong>the</strong>ca echioides (L.) Holub FACU Akan Asante<br />

Hemarthria altissima (Poir.) Stapf & C.E. Hubbard FACW Limpo Grass<br />

Hemerocallis fulva (L.) L. FACU Orange Day‐Lily<br />

Heracleum maximum Bartr. FACW American Cow‐Parsnip<br />

Hesperevax caulescens (Benth.) Gray OBL Dwarf Pygmy‐Cudweed<br />

Hesperevax sparsiflora (Gray) Greene FACU Erect Pygmy‐Cudweed<br />

Hesperis matronalis L. FACU Mo<strong>the</strong>r‐of‐<strong>the</strong>‐Evening<br />

Hesperochiron cali<strong>for</strong>nicus (Benth.) S. Wats. FACU Cali<strong>for</strong>nia Monkey‐Fiddle<br />

Hesperochiron pumilus (Dougl. ex Griseb.) Porter FAC Dwarf Monkey‐Fiddle<br />

Heteran<strong>the</strong>ra dubia (Jacq.) MacM. OBL Grass‐Leaf Mud‐<strong>Plant</strong>ain<br />

Heteran<strong>the</strong>ra limosa (Sw.) Willd. OBL Blue Mud‐<strong>Plant</strong>ain<br />

Heteran<strong>the</strong>ra reni<strong>for</strong>mis Ruiz & Pavón OBL Kidney‐Leaf Mud‐<strong>Plant</strong>ain<br />

Heterocodon rariflorum Nutt. FACW <strong>West</strong>ern Pearlflower<br />

Heteropogon contortus (L.) Beauv. ex Roemer & J.A. Schultes FACU Twisted Tanglehead<br />

Hetero<strong>the</strong>ca oregona (Nutt.) Shinners FACU Oregon False Golden‐Aster<br />

Hetero<strong>the</strong>ca shevockii (Semple) Semple FACU Shevock's False Golden‐Aster<br />

Heuchera chlorantha Piper FACU Tall Alumroot<br />

Hibiscus moscheutos L. OBL Crimson‐Eyed Rose‐Mallow<br />

Hieracium triste Willd. ex Spreng. FACU Woolly Hawkweed<br />

Hippuris montana Ledeb. FACW Mountain Mare's‐Tail<br />

Hippuris vulgaris L. OBL Common Mare's‐Tail<br />

Hoffmannseggia glauca (Ortega) Eifert FACU Waxy Rush‐Pea<br />

Hoita macrostachya (DC.) Rydb. OBL Large Lea<strong>the</strong>r‐Root<br />

Hoita orbicularis (Lindl.) Rydb. OBL Round‐Leaf Lea<strong>the</strong>r‐Root<br />

Holcus lanatus L. FAC Common Velvet Grass<br />

Holcus mollis L. FAC Creeping Velvet Grass<br />

Holodiscus discolor (Pursh) Maxim. FACU Creambush<br />

Holozonia filipes (Hook. & Arn.) Greene FACU Whitecrown<br />

Hopia obtusa (Kunth) F. Zuloaga & O. Morrone FACU<br />

Hordeum arizonicum Covas FAC Arizona Barley<br />

Hordeum brachyan<strong>the</strong>rum Nevski FACW Meadow Barley<br />

Hordeum depressum (Scribn. & J.G. Sm.) Rydb. FACW Dwarf Barley<br />

Hordeum intercedens Nevski FAC Bob‐Tail Barley<br />

Hordeum jubatum L. FAC Fox‐Tail Barley<br />

Hordeum marinum Huds. FAC Seaside Barley<br />

Hordeum murinum L. FACU Wall Barley<br />

Hordeum pusillum Nutt. FACU Little Barley<br />

Horkelia bolanderi Gray FAC Border Honeydew<br />

Horkelia congesta Dougl. ex Hook. FACU Sierran Honeydew<br />

Horkelia yadonii Ertter FACU Santa Lucia Honeydew

---

Hornungia procumbens (L.) Hayek FAC Ovalpurse<br />

Houstonia wrightii Gray FACU Pygmy Bluet<br />

Howellia aquatilis Gray OBL Water Howellwort<br />

Humulus lupulus L. FACU Common Hop<br />

Huperzia haleakalae (Brack.) Holub FACU Pacific Fir‐Moss<br />

Huperzia lucidula (Michx.) Trevisan FACW Shining Fir‐Moss<br />

Hydrilla verticillata (L. f.) Royle OBL Water‐Thyme<br />

Hydrocotyle prolifera Kellogg OBL Proliferous Marsh‐Pennywort<br />

Hydrocotyle ranunculoides L. f. OBL Floating Marsh‐Pennywort<br />

Hydrocotyle sibthorpioides Lam. FACW Lawn Marsh‐Pennywort<br />

Hydrocotyle umbellata L. OBL Many‐Flower Marsh‐Pennywort<br />

Hydrocotyle verticillata Thunb. OBL Whorled Marsh‐Pennywort<br />

Hydrophyllum fendleri (Gray) Heller FAC Fendler's Waterleaf<br />

Hydrophyllum occidentale (S. Wats.) Gray FACW Squaw‐Lettuce<br />

Hydrophyllum tenuipes Heller FACW Pacific Waterleaf<br />

Hymenoxys hoopesii (Gray) Bierner FAC Owl's‐Claws<br />

Hypericum anagalloides Cham. & Schlecht. OBL Tinker's‐Penny<br />

Hypericum boreale (Britt.) Bickn. OBL Nor<strong>the</strong>rn St. John's‐Wort<br />

Hypericum majus (Gray) Britt. FACW Greater Canadian St. John's‐Wort<br />

Hypericum mutilum L. FACW Dwarf St. John's‐Wort<br />

Hypericum per<strong>for</strong>atum L. FACU Common St. John's‐Wort<br />

Hypericum scouleri Hook. FACW Scouler's St. John's‐Wort<br />

Hypochaeris radicata L. FACU Hairy Cat's‐Ear<br />

Hypoxis hirsuta (L.) Coville FACW Eastern Yellow Star‐Grass<br />

Iliamna grandiflora (Rydb.) Wiggins FACW Large‐Flower Wild Hollyhock<br />

Iliamna rivularis (Dougl. ex Hook.) Greene FACW Streambank Wild Hollyhock<br />

Impatiens aurella Rydb. FACW Pale‐Yellow Touch‐Me‐Not<br />

Impatiens capensis Meerb. FACW Spotted Touch‐Me‐Not<br />

Impatiens ecalcarata Blank. FACW Spurless Touch‐Me‐Not<br />

Impatiens glandulifera Royle FACW Policeman's‐Helmet<br />

Imperata brevifolia Vasey FAC Cali<strong>for</strong>nia Satintail<br />

Indigofera lindheimeriana Scheele FAC Lindheimer's Indigo<br />

Inula helenium L. FAC Elecampane<br />

Ipomoea aquatica Forssk. OBL Swamp‐Cabbage<br />

Ipomoea cairica (L.) Sweet FACU Mile‐a‐Minute‐Vine<br />

Ipomoea cordatotriloba Dennst. FAC Tievine<br />

Ipomoea hederacea Jacq. FACU Ivy‐Leaf Morning‐Glory<br />

Ipomoea indica (Burm. f.) Merr. FAC Ocean‐Blue Morning‐Glory<br />

Ipomoea lacunosa L. FACW Whitestar<br />

Ipomoea quamoclit L. FACU Cypress‐Vine<br />

Ipomoea triloba L. FACU Littlebell<br />

Iris hartwegii Baker FACU Rainbow Iris<br />

Iris missouriensis Nutt. FACW Rocky Mountain Iris<br />

Iris pseudacorus L. OBL Pale‐Yellow Iris<br />

Isocoma acradenia (Greene) Greene FACU Alkali Jimmyweed<br />

Isocoma arguta Greene FACU Contra Costa Jimmyweed<br />

Isocoma menziesii (Hook. & Arn.) Nesom FAC Variable Jimmyweed

---

Isoetes bolanderi Engelm. OBL Bolander's Quillwort<br />

Isoetes howellii Engelm. OBL Howell's Quillwort<br />

Isoetes melanopoda Gay & Durieu ex Durieu OBL Black‐Foot Quillwort<br />

Isoetes minima A.A. Eat. FACW Midget Quillwort<br />

Isoetes nuttallii A. Braun ex Engelm. OBL Nuttall's Quillwort<br />

Isoetes occidentalis Henderson OBL <strong>West</strong>ern Quillwort<br />

Isoetes orcuttii A.A. Eat. OBL Orcutt's Quillwort<br />

Isoetes tenella Léman OBL Spiny‐Spore Quillwort<br />

Isolepis carinata Hook. & Arn. ex Torr. OBL Keeled Lateral‐Bulrush<br />

Isolepis cernua (Vahl) Roemer & J.A. Schultes OBL Low Lateral‐Bulrush<br />

Isolepis prolifera R. Br. OBL Proliferous Lateral‐Bulrush<br />

Isolepis setacea (L.) R. Br. FACW Bristle‐Leaf Lateral‐Bulrush<br />

Iva annua L. FAC Annual Marsh‐Elder<br />

Iva axillaris Pursh FAC Deer‐Root<br />

Iva hayesiana Gray FACW San Diego Marsh‐Elder<br />

Ivesia kingii S. Wats. FAC King's Mousetail<br />

Ivesia lycopodioides Gray FAC Clubmoss Mousetail<br />

Ivesia pickeringii Torr. ex Gray OBL Silky Mousetail<br />

Ivesia pityocharis Ertter FACW Pine Nut Mountain Mousetail<br />

Ivesia sericoleuca (Rydb.) Rydb. FAC Plumas Mousetail<br />

Jamesia americana Torr. & Gray FACU Five‐Petal Cliffbush<br />

Jaumea carnosa (Less.) Gray OBL Marsh Jaumea<br />

Jensia yosemitana (Parry ex Gray) B.G. Baldwin FACU Yosemite Annual‐Tarweed<br />

Juglans cali<strong>for</strong>nica S. Wats. FAC Sou<strong>the</strong>rn Cali<strong>for</strong>nia Walnut<br />

Juglans cinerea L. FACU White Walnut<br />

Juglans hindsii (Jepson) Jepson ex R.E. Sm. FAC Nor<strong>the</strong>rn Cali<strong>for</strong>nia Walnut<br />

Juglans major (Torr.) Heller FAC Arizona Walnut<br />

Juglans microcarpa Berl. FAC Little Walnut<br />

Juncus acuminatus Michx. OBL Knotty‐Leaf Rush<br />

Juncus acutus L. FACW Spiny Rush<br />

Juncus albescens (Lange) Fern. OBL Nor<strong>the</strong>rn White Rush<br />

Juncus alpinoarticulatus Chaix OBL Nor<strong>the</strong>rn Green Rush<br />

Juncus arcticus Willd. FACW Arctic Rush<br />

Juncus articulatus L. OBL Joint‐Leaf Rush<br />

Juncus biglumis L. OBL Two‐Flower Rush<br />

Juncus bolanderi Engelm. OBL Bolander's Rush<br />

Juncus brachyphyllus Wieg. FAC Short‐Leaf Rush<br />

Juncus brevicaudatus (Engelm.) Fern. OBL Narrow‐Panicle Rush<br />

Juncus breweri Engelm. FACW Brewer's Rush<br />

Juncus bryoides F.J. Herm. OBL Moss Dwarf Rush<br />

Juncus bufonius L. FACW Toad Rush<br />

Juncus capillaris F.J. Herm. FACW Hairy‐Stem Dwarf Rush<br />

Juncus capitatus Weigel FACU Leafy‐Bract Dwarf Rush<br />

Juncus castaneus Sm. FACW Chestnut Rush<br />

Juncus chlorocephalus Engelm. FACW Green‐Head Rush<br />

Juncus compressus Jacq. OBL Round‐Fruit Rush<br />

Juncus confusus Coville FAC Colorado Rush

---

Juncus cooperi Engelm. FACW Cooper's Rush<br />

Juncus covillei Piper FACW Coville's Rush<br />

Juncus dichotomus Ell. FACW Forked Rush<br />

Juncus diffusissimus Buckl. FACW Slim‐Pod Rush<br />

Juncus digitatus C. Witham & P. Zika OBL<br />

Juncus drummondii E. Mey. FACW Drummond's Rush<br />

Juncus dubius Engelm. FACW Mariposa Rush<br />

Juncus dudleyi Wieg. FAC Dudley's Rush<br />

Juncus duranii Ewan OBL Duran's Rush<br />

Juncus effusus L. FACW Lamp Rush<br />

Juncus ensifolius Wikstr. FACW Dagger‐Leaf Rush<br />

Juncus falcatus E. Mey. FACW Sickle‐Leaf Rush<br />

Juncus fili<strong>for</strong>mis L. FACW Thread Rush<br />

Juncus gerardii Loisel. FACW Saltmarsh Rush<br />

Juncus hallii Engelm. FAC Hall's Rush<br />

Juncus hemiendytus F.J. Herm. OBL Herman's Dwarf Rush<br />

Juncus interior Wieg. FAC Inland Rush<br />

Juncus kelloggii Engelm. FACW Kellogg's Dwarf Rush<br />

Juncus leiospermus F.J. Herm. OBL Red Bluff Dwarf Rush<br />

Juncus lesueurii Boland. FACW Salt Rush<br />

Juncus longistylis Torr. FACW Long‐Style Rush<br />

Juncus luciensis Ertter OBL Santa Lucia Dwarf Rush<br />

Juncus macrandrus Coville OBL Long‐An<strong>the</strong>r Rush<br />

Juncus macrophyllus Coville FACW Long‐Leaf Rush<br />

Juncus marginatus Rostk. FACW Grass‐Leaf Rush<br />

Juncus mertensianus Bong. OBL Mertens' Rush<br />

Juncus mexicanus Willd. ex J.A. & J.H. Schultes FACW Mexican Rush<br />

Juncus nevadensis S. Wats. FACW Sierran Rush<br />

Juncus nodatus Coville OBL Stout Rush<br />

Juncus nodosus L. OBL Knotted Rush<br />

Juncus occidentalis (Coville) Wieg. FACW <strong>West</strong>ern Rush<br />

Juncus orthophyllus Coville FACW Straight‐Leaf Rush<br />

Juncus oxymeris Engelm. FACW Pointed Rush<br />

Juncus parryi Engelm. FAC Parry's Rush<br />

Juncus patens E. Mey. FACW Spreading Rush<br />

Juncus phaeocephalus Engelm. FACW Brown‐Head Rush<br />

Juncus regelii Buch. FACW Regel's Rush<br />

Juncus rugulosus Engelm. OBL Wrinkled Rush<br />

Juncus scirpoides Lam. FACW Needle‐Pod Rush<br />

Juncus supini<strong>for</strong>mis Engelm. OBL Hairy‐Leaf Rush<br />

Juncus tenuis Willd. FACW Lesser Poverty Rush<br />

Juncus textilis Buch. FACW Basket Rush<br />

Juncus tiehmii Ertter FACW Nevada Rush<br />

Juncus torreyi Coville FACW Torrey's Rush<br />

Juncus tri<strong>for</strong>mis Engelm. FACW Yosemite Dwarf Rush<br />

Juncus triglumis L. FACW Three‐Flower Rush<br />

Juncus uncialis Greene OBL Inch‐High Rush

---

Juncus vaseyi Engelm. FACW Vasey's Rush<br />

Juncus xiphioides E. Mey. OBL Iris‐Leaf Rush<br />

Juniperus communis L. FACU Common Juniper<br />

Juniperus deppeana Steud. FACU Alligator Juniper<br />

Juniperus horizontalis Moench FACU Creeping Juniper<br />

Juniperus virginiana L. FACU Eastern Red‐Cedar<br />

Kalmia microphylla (Hook.) Heller OBL Alpine‐Laurel<br />

Kobresia myosuroides (Vill.) Fiori FACU Pacific Bog Sedge<br />

Kobresia sibirica (Turcz. ex Ledeb.) Boeckl. FAC Siberian Bog Sedge<br />

Kobresia simpliciuscula (Wahlenb.) Mackenzie FACW Simple Bog Sedge<br />

Koenigia islandica L. OBL Island‐Purslane<br />

Krigia biflora (Walt.) Blake FACU Two‐Flower Dwarf‐Dandelion<br />

Kumlienia hystricula (Gray) Greene OBL Waterfall False Buttercup<br />

Kummerowia stipulacea (Maxim.) Makino FACU Korean‐Clover<br />

Kummerowia striata (Thunb.) Schindl. FACU Japanese‐Clover<br />

Kyllinga brevifolia Rottb. FACW Short‐Leaf Spike Sedge<br />

Kyllinga odorata Vahl FACW Fragrant Spike Sedge<br />

Lachnagrostis fili<strong>for</strong>mis (G. Forst.) Trin. FACW Common Blown Grass<br />

Lactuca biennis (Moench) Fern. FAC Wild Blue Lettuce<br />

Lactuca canadensis L. FACU Canadian Blue Lettuce<br />

Lactuca graminifolia Michx. FAC Grass‐Leaf Lettuce<br />

Lactuca ludoviciana (Nutt.) Riddell FAC Louisiana Lettuce<br />

Lactuca serriola L. FACU Prickly Lettuce<br />

Lactuca tatarica (L.) C.A. Mey. FAC Russian Blue Lettuce<br />

Laennecia coulteri (Gray) Nesom FAC Coulter's Woolwort<br />

Lamarckia aurea (L.) Moench FACU Golden‐Top Grass<br />

Landoltia punctata (G.F.W. Mey.) D.H. Les & D.J. Craw<strong>for</strong>d OBL Dotted Duckmeat<br />

Lantana camara L. FACU Hedgeflower<br />

Lantana urticoides Hayek FACU <strong>West</strong> Indian Shrub‐Verbena<br />

Lapsana communis L. FAC Common Nipplewort<br />

Larix occidentalis Nutt. FACU <strong>West</strong>ern Larch<br />

Las<strong>the</strong>nia burkei (Greene) Greene OBL Burke's Goldfields<br />

Las<strong>the</strong>nia cali<strong>for</strong>nica DC. ex Lindl. FACU Cali<strong>for</strong>nia Goldfields<br />

Las<strong>the</strong>nia chrysantha (Greene ex Gray) Greene FAC Alkali‐Sink Goldfields<br />

Las<strong>the</strong>nia conjugens Greene FACW Contra Costa Goldfields<br />

Las<strong>the</strong>nia ferrisiae Ornduff OBL Ferris' Goldfields<br />

Las<strong>the</strong>nia fremontii (Torr. ex Gray) Greene OBL Fremont's Goldfields<br />

Las<strong>the</strong>nia glaberrima DC. OBL Smooth Goldfields<br />

Las<strong>the</strong>nia glabrata Lindl. FACW Yellow‐Ray Goldfields<br />

Las<strong>the</strong>nia minor (DC.) Ornduff FACW Coastal Goldfields<br />

Las<strong>the</strong>nia platycarpha (Gray) Greene FACW Alkali Goldfields<br />

Lathyrus hirsutus L. FAC Singletary Vetchling<br />

Lathyrus japonicus Willd. FACU Sea Vetchling<br />

Lathyrus jepsonii Greene OBL Delta Vetchling<br />

Lathyrus palustris L. OBL Marsh Vetchling<br />

Lathyrus pusillus Ell. FAC Tiny Vetchling<br />

Lathyrus sphaericus Retz. FACU Grass Vetchling

---

Lathyrus venosus Muhl. ex Willd. FAC Veiny Vetchling<br />

Layia chrysan<strong>the</strong>moides (DC.) Gray FACW Smooth Tidytips<br />

Layia heterotricha (DC.) Hook. & Arn. FAC Pale‐Yellow Tidytips<br />

Layia munzii Keck FACW Munz's Tidytips<br />

Ledum glandulosum Nutt. FACW Glandular Labrador‐Tea<br />

Ledum X columbianum Piper (pro sp.) OBL<br />

Leersia hexandra Sw. OBL Sou<strong>the</strong>rn Cut Grass<br />

Leersia oryzoides (L.) Sw. OBL Rice Cut Grass<br />

Leersia virginica Willd. FACW White Grass<br />

Legenere limosa (Greene) McVaugh OBL False Venus'‐Looking‐Glass<br />

Lemna aequinoctialis Welw. OBL Lesser Duckweed<br />

Lemna gibba L. OBL Inflated Duckweed<br />

Lemna minor L. OBL Common Duckweed<br />

Lemna minuta Kunth OBL Least Duckweed<br />

Lemna obscura (Austin) Daubs OBL Little Duckweed<br />

Lemna trisulca L. OBL Ivy‐Leaf Duckweed<br />

Lemna turionifera Landolt OBL Turion Duckweed<br />

Lemna valdiviana Phil. OBL Pale Duckweed<br />

Leonotis nepetifolia (L.) R. Br. ex Ait. f. FACU Christmas‐Candlestick<br />

Leontodon autumnalis L. FAC August‐Flower<br />

Leontodon saxatilis Lam. FACU Lesser Hawkbit<br />

Lepidium davisii Rollins FACW Davis' Pepperwort<br />

Lepidium dictyotum Gray FAC Alkali Pepperwort<br />

Lepidium latifolium L. FAC Broad‐Leaf Pepperwort<br />

Lepidium latipes Hook. FACW San Diego Pepperwort<br />

Lepidium nitidum Nutt. FAC Shining Pepperwort<br />

Lepidium oxycarpum Torr. & Gray OBL Forked Pepperwort<br />

Lepidium perfoliatum L. FACU Clasping Pepperwort<br />

Lepidium thurberi Woot. FACU Thurber's Pepperwort<br />

Lepidium virginicum L. FACU Poorman's‐Pepperwort<br />

Lepidospartum squamatum (Gray) Gray FACU Cali<strong>for</strong>nia Scalebroom<br />

Leptarrhena pyrolifolia (D. Don) R. Br. ex Ser. FACW Pearleaf<br />

Leptochloa fusca (L.) Kunth FACW Bearded Sprangletop<br />

Leptochloa nealleyi Vasey FACW Nealley's Sprangletop<br />

Leptochloa panicea (Retz.) Ohwi FACW Needle Sprangletop<br />

Leptochloa viscida (Scribn.) Beal FACU Sonoran Sprangletop<br />

Leptosiphon nuttallii (Gray) J.M. Porter & L.A. Johnson FACU Nuttall's Perennial Gily‐Flower<br />

Leucaena leucocephala (Lam.) de Wit FACU White Leadtree<br />

Leucospora multifida (Michx.) Nutt. FACW Narrow‐Leaf Paleseed<br />

Leucothoe davisiae Torr. ex Gray FACW Sierran Doghobble<br />

Lewisia brachycalyx Engelm. ex Gray FACU Short‐Sepal Bitter‐Root<br />

Lewisia cantelovii J.T. Howell OBL Cantelow's Bitter‐Root<br />

Lewisia pygmaea (Gray) B.L. Robins. FACU Alpine Bitter‐Root<br />

Leymus cinereus (Scribn. & Merr.) A. Löve FAC Great Basin Lyme Grass<br />

Leymus condensatus (J. Presl) A. Löve FACU Giant Lyme Grass<br />

Leymus mollis (Trin.) Pilger FACU American Lyme Grass<br />

Leymus triticoides (Buckl.) Pilger FAC Beardless Lyme Grass

---

Liatris lancifolia (Greene) Kittell FAC Lance‐Leaf Gayfea<strong>the</strong>r<br />

Liatris ligulistylis (A. Nels.) K. Schum. FAC Strap‐Style Gayfea<strong>the</strong>r<br />

Ligusticum canbyi (Coult. & Rose) Coult. & Rose FAC Canby's Wild Lovage<br />

Ligusticum grayi Coult. & Rose FAC Sheep Wild Lovage<br />

Ligusticum porteri Coult. & Rose FACU Porter's Wild Lovage<br />

Ligusticum tenuifolium S. Wats. FACW Slender‐Leaf Wild Lovage<br />

Ligusticum verticillatum (Hook.) Coult. & Rose ex Rose FACW Idaho Wild Lovage<br />

Ligustrum japonicum Thunb. FACU Japanese Privet<br />

Lilaea scilloides (Poir.) Hauman OBL Flowering‐Quillwort<br />

Lilaeopsis masonii Mathias & Constance OBL Mason's Grasswort<br />

Lilaeopsis occidentalis Coult. & Rose OBL <strong>West</strong>ern Grasswort<br />

Lilaeopsis schaffneriana (Schlecht.) Coult. & Rose OBL Schaffner's Grasswort<br />

Lilium bolanderi S. Wats. FACW Thimble Lily<br />

Lilium kelleyanum J.G. Lemmon OBL Kelley's Lily<br />

Lilium maritimum Kellogg FACW Coastal Lily<br />

Lilium occidentale Purdy FACW Eureka Lily<br />

Lilium pardalinum Kellogg FACW Leopard Lily<br />

Lilium parryi S. Wats. OBL Lemon Lily<br />

Lilium parvum Kellogg OBL Sierran Tiger Lily<br />

Lilium philadelphicum L. FAC Wood Lily<br />

Limnan<strong>the</strong>s alba Hartw. ex Benth. FACW White Meadowfoam<br />

Limnan<strong>the</strong>s bakeri J.T. Howell OBL Baker's Meadowfoam<br />

Limnan<strong>the</strong>s douglasii R. Br. OBL Douglas' Meadowfoam<br />

Limnan<strong>the</strong>s floccosa T.J. Howell OBL Woolly Meadowfoam<br />

Limnan<strong>the</strong>s gracilis T.J. Howell OBL Slender Meadowfoam<br />

Limnan<strong>the</strong>s montana Jepson OBL Mountain Meadowfoam<br />

Limnan<strong>the</strong>s striata Jepson FACW Foothill Meadowfoam<br />

Limnan<strong>the</strong>s vinculans Ornduff OBL Cunningham Marsh Meadowfoam<br />

Limnobium laevigatum (Humb. & Bonpl. ex Willd.) Heine OBL <strong>West</strong> Indian Spongeplant<br />

Limnophila X ludoviciana Thieret OBL<br />

Limonium arborescens (Brouss.) Kuntze FAC Tree Sea‐Lavender<br />

Limonium cali<strong>for</strong>nicum (Boiss.) Heller FACW Marsh‐Rosemary<br />

Limonium limbatum Small FACW Trans‐Pecos Sea‐Lavender<br />

Limonium ramosissimum (Poir.) Maire FACW Algerian Sea‐Lavender<br />

Limonium sinuatum (L.) P. Mill. FACW Wavy‐Leaf Sea‐Lavender<br />

Limosella acaulis Sessé & Moc. OBL Owyhee Mudwort<br />

Limosella aquatica L. OBL Awl‐Leaf Mudwort<br />

Limosella australis R. Br. OBL Welsh Mudwort<br />

Limosella pubiflora Pennell OBL Chiricahua Mountain Mudwort<br />

Lindernia dubia (L.) Pennell OBL Yellow‐Seed False Pimpernel<br />

Linnaea borealis L. FACU American Twinflower<br />

Liparis loeselii (L.) L.C. Rich. FACW Yellow Wide‐Lip Orchid<br />

Lipocarpha aristulata (Coville) G. Tucker FACW Awned Halfchaff Sedge<br />

Lipocarpha drummondii (Nees) G. Tucker FACW Drummond's Halfchaff Sedge<br />

Lipocarpha micrantha (Vahl) G. Tucker OBL Small‐Flower Halfchaff Sedge<br />

Lipocarpha occidentalis (Gray) G. Tucker FACW <strong>West</strong>ern Halfchaff Sedge<br />

Liquidambar styraciflua L. FAC Sweet‐Gum

---

<strong>List</strong>era banksiana Lindl. FACU Northwestern Twayblade<br />

<strong>List</strong>era borealis Morong FACW Nor<strong>the</strong>rn Twayblade<br />

<strong>List</strong>era convallarioides (Sw.) Nutt. ex Ell. FAC Broad‐Lip Twayblade<br />

<strong>List</strong>era cordata (L.) R. Br. ex Ait. f. FACW Heart‐Leaf Twayblade<br />

Lloydia serotina (L.) Reichenb. FACU Common Alp‐Lily<br />

Lobelia anatina F. Wimmer FACW Apache Lobelia<br />

Lobelia berlandieri A. DC. FAC Berlandier's Lobelia<br />

Lobelia cardinalis L. OBL Cardinal‐Flower<br />

Lobelia dortmanna L. OBL Water Lobelia<br />

Lobelia dunnii Greene FACW Dunn's Lobelia<br />

Lobelia fenestralis Cav. FACU Fringe‐Leaf Lobelia<br />

Lobelia kalmii L. OBL Brook Lobelia<br />

Loiseleuria procumbens (L.) Desv. FACW Alpine‐Azalea<br />

Lolium perenne L. FAC Perennial Rye Grass<br />

Lomatium bicolor (S. Wats.) Coult. & Rose FACU Wasatch Desert‐Parsley<br />

Lomatium caruifolium (Hook. & Arn.) Coult. & Rose FACW Alkali Desert‐Parsley<br />

Lomatium cookii J.S. Kagan OBL Agate Desert‐Parsley<br />

Lomatogonium rotatum (L.) Fries ex Fern. OBL Marsh‐Felwort<br />

Lonicera caerulea L. FAC Sweet‐Berry Honeysuckle<br />

Lonicera conjugialis Kellogg FAC Purple‐Flower Honeysuckle<br />

Lonicera hispidula (Lindl.) Dougl. ex Torr. & Gray FACU Pink Honeysuckle<br />

Lonicera involucrata (Richards.) Banks ex Spreng. FAC Four‐Line Honeysuckle<br />

Lonicera japonica Thunb. FACU Japanese Honeysuckle<br />

Lonicera utahensis S. Wats. FAC Rocky Mountain Honeysuckle<br />

Lonicera X bella Zabel FACU<br />

Lorandersonia linifolia (Greene) Urbatsch, R.P. Roberts & Neubig FAC Spear‐Leaf False Geesewood<br />

Lotus alamosanus (Rose) Gentry OBL Sonoran Bird's‐Foot‐Trefoil<br />

Lotus corniculatus L. FAC Garden Bird's‐Foot‐Trefoil<br />

Lotus <strong>for</strong>mosissimus Greene FACW Harlequin Bird's‐Foot‐Trefoil<br />

Lotus glaber P. Mill. FACU Narrow‐Leaf Bird's‐Foot‐Trefoil<br />

Lotus oblongifolius (Benth.) Greene OBL Streambank Bird's‐Foot‐Trefoil<br />

Lotus pedunculatus Cav. FACU Large Bird's‐Foot‐Trefoil<br />

Lotus pinnatus Hook. FACW Meadow Bird's‐Foot‐Trefoil<br />

Ludwigia grandiflora (M. Micheli) Greuter & Burdet OBL Large‐Flower Primrose‐Willow<br />

Ludwigia palustris (L.) Ell. OBL Marsh Primrose‐Willow<br />

Ludwigia peploides (Kunth) Raven OBL Floating Primrose‐Willow<br />

Ludwigia polycarpa Short & Peter OBL Many‐Fruit Primrose‐Willow<br />

Ludwigia repens J.R. Forst. OBL Creeping Primrose‐Willow<br />

Luetkea pectinata (Pursh) Kuntze FACU Partridgefoot<br />

Lupinus arcticus S. Wats. FACU Arctic Lupine<br />

Lupinus covillei Greene FACU Shaggy Lupine<br />

Lupinus latifolius Lindl. ex J.G. Agardh FACW Broad‐Leaf Lupine<br />

Lupinus padre‐crowleyi C.P. Sm. FACU Fa<strong>the</strong>r Crowley's Lupine<br />

Lupinus polyphyllus Lindl. FAC Blue‐Pod Lupine<br />

Lupinus prunophilus M.E. Jones FACU Hairy Big‐Leaf Lupine<br />

Lupinus rivularis Dougl. ex Lindl. FACU River‐Bank Lupine<br />

Luzula comosa E. Mey. FAC Pacific Wood‐Rush

---

Luzula multiflora (Ehrh.) Lej. FACU Common Wood‐Rush<br />

Luzula parviflora (Ehrh.) Desv. FAC Small‐Flower Wood‐Rush<br />

Luzula spicata (L.) DC. FACU Spiked Wood‐Rush<br />

Luzula subcapitata (Rydb.) Harrington OBL Colorado Wood‐Rush<br />

Luzula subcongesta (S. Wats.) Jepson FACW Donner Wood‐Rush<br />

Lycopodiella inundata (L.) Holub OBL Nor<strong>the</strong>rn Bog Club‐Moss<br />

Lycopodium clavatum L. FAC Running Ground‐Pine<br />

Lycopodium lagopus (Laestad. ex Hartm.) Zinserl. ex Kuzen FACU One‐Cone Ground‐Pine<br />

Lycopus americanus Muhl. ex W. Bart. OBL Cut‐Leaf Water‐Horehound<br />

Lycopus asper Greene OBL Rough Water‐Horehound<br />

Lycopus uniflorus Michx. OBL Nor<strong>the</strong>rn Water‐Horehound<br />

Lysichiton americanus Hultén & St. John OBL Yellow‐Skunk‐Cabbage<br />

Lysiloma watsonii Rose FACU Little‐Leaf False Tamarind<br />

Lysimachia arvensis (L.) U. Manns & A. Anderb. FAC Scarlet Yellow‐Loosestrife<br />

Lysimachia ciliata L. FACW Fringed Yellow‐Loosestrife<br />

Lysimachia hybrida Michx. OBL Lowland Yellow‐Loosestrife<br />

Lysimachia minima (L.) U. Manns & A. Anderb. FACW Chaffweed<br />

Lysimachia nummularia L. FACW Creeping‐Jenny<br />

Lysimachia terrestris (L.) B.S.P. OBL Swampcandles<br />

Lysimachia thyrsiflora L. OBL Tufted Yellow‐Loosestrife<br />

Lysimachia vulgaris L. FACW Garden Yellow‐Loosestrife<br />

Lythrum alatum Pursh OBL Wing‐Angle Loosestrife<br />

Lythrum cali<strong>for</strong>nicum Torr. & Gray OBL Cali<strong>for</strong>nia Loosestrife<br />

Lythrum hyssopifolium L. OBL Hyssop Loosestrife<br />

Lythrum portula (L.) D.A. Webb OBL Spatula‐Leaf Loosestrife<br />

Lythrum salicaria L. OBL Purple Loosestrife<br />

Lythrum tribracteatum Salzm. ex Spreng. OBL Three‐Bract Loosestrife<br />

Macroptilium atropurpureum (Moc. & Sessé ex DC.) Urban FACU Purple Bush‐Bean<br />

Madia glomerata Hook. FACU Mountain Tarplant<br />

Maian<strong>the</strong>mum dilatatum (Wood) A. Nels. & J.F. Macbr. FAC Two‐Leaf False Solomon's‐Seal<br />

Maian<strong>the</strong>mum racemosum (L.) Link FAC Fea<strong>the</strong>ry False Solomon's‐Seal<br />

Maian<strong>the</strong>mum stellatum (L.) Link FACU Starry False Solomon's‐Seal<br />

Malacothamnus abbottii (Eastw.) Kearney FACW Monterey Bush‐Mallow<br />

Malacothamnus davidsonii (B.L. Robins.) Greene FACU Sand Bush‐Mallow<br />

Malaxis monophyllos (L.) Sw. FACW White Adder's‐Mouth Orchid<br />

Malephora crocea (Jacq.) Schwant. FACU Coppery‐Mesemb<br />

Malus fusca (Raf.) Schneid. FAC Oregon Crabapple<br />

Malvastrum coromandelianum (L.) Garcke FAC Three‐Lobe False Mallow<br />

Malvaviscus arboreus Dill. ex Cav. FACU Wax‐Mallow<br />

Malvella leprosa (Ortega) Krapov. FACU Alkali‐Mallow<br />

Marrubium vulgare L. FACU White Horehound<br />

Marsilea mollis B.L. Robins. & Fern. OBL Chihuahuan Water‐Clover<br />

Marsilea oligospora Goodding OBL Pacific Water‐Clover<br />

Marsilea vestita Hook. & Grev. OBL Hairy Water‐Clover<br />

Matricaria discoidea DC. FACU Pineapple‐Weed<br />

Matricaria occidentalis Greene FACW Valley Mayweed<br />

Mazus pumilus (Burm. f.) Steenis FACW Japanese Mazus

---

Mecardonia procumbens (P. Mill.) Small FACW Baby‐Jump‐Up<br />

Meconella oregana Nutt. FAC White Fairy‐Poppy<br />

Medicago lupulina L. FAC Black Medick<br />

Medicago polymorpha L. FACU Too<strong>the</strong>d Medick<br />

Medicago truncatula Gaertn. FACU Barrel Medick<br />

Megathyrsus maximus (Jacq.) B.K. Simon & S.W.L. Jacobs FAC<br />

Melampodium perfoliatum (Cav.) Kunth FAC Perfoliate Blackfoot<br />

Melampyrum lineare Desr. FAC American Cow‐Wheat<br />

Melica bulbosa Geyer ex Porter & Coult. FACU Onion Grass<br />

Melica spectabilis Scribn. FAC Showy Melic Grass<br />

Melilotus indicus (L.) All. FACU Indian Sweet‐Clover<br />

Melilotus officinalis (L.) Lam. FACU Yellow Sweet‐Clover<br />

Melochia pyramidata L. FAC Pyramid‐Flower<br />

Melothria pendula L. FAC Guadeloupe‐Cucumber<br />

Mentha aquatica L. FACW Water Mint<br />

Mentha arvensis L. FACW American Wild Mint<br />

Mentha pulegium L. OBL Pennyroyal<br />

Mentha spicata L. OBL Spearmint<br />

Mentha suaveolens Ehrh. FACW Apple Mint<br />

Mentha X piperita L. (pro sp.) FACW<br />

Mentha X villosa Huds. (pro sp.) FACW<br />

Mentzelia leucophylla Brandeg. FAC Ash Meadows Blazingstar<br />

Menyan<strong>the</strong>s trifoliata L. OBL Buck‐Bean<br />

Menziesia ferruginea Sm. FACU Fool's‐Huckleberry<br />

Merremia dissecta (Jacq.) Hallier f. FAC Noyau‐Vine<br />

Mertensia bella Piper FACW Oregon Bluebells<br />

Mertensia ciliata (James ex Torr.) G. Don FACW Tall Fringe Bluebells<br />

Mertensia franciscana Heller OBL Franciscan Bluebells<br />

Mertensia fusi<strong>for</strong>mis Greene FACW Spindle‐Root Bluebells<br />

Mertensia oblongifolia (Nutt.) G. Don FAC Languid‐Lady<br />

Mertensia paniculata (Ait.) G. Don FACW Tall Bluebells<br />

Mertensia viridis (A. Nels.) A. Nels. FACU Green Bluebells<br />

Mesembryan<strong>the</strong>mum crystallinumL. FACU Crystalline Iceplant<br />

Mesembryan<strong>the</strong>mum nodiflorum L. FAC Slender‐Leaf Iceplant<br />

Microseris borealis (Bong.) Schultz‐Bip. OBL Nor<strong>the</strong>rn Silverpuffs<br />

Microseris douglasii (DC.) Schultz‐Bip. FACU Douglas' Silverpuffs<br />

Microseris laciniata (Hook.) Schultz‐Bip. FACU Cut‐Leaf Silverpuffs<br />

Microsteris gracilis (Hook.) Greene FACU Annual‐Phlox<br />

Mimetan<strong>the</strong> pilosa (Benth.) Greene FACW False Monkey‐Flower<br />

Mimulus alsinoides Dougl. ex Benth. OBL Wing‐Stem Monkey‐Flower<br />

Mimulus angustatus (Gray) Gray OBL Purple‐Lip Pansy Monkey‐Flower<br />

Mimulus bicolor Hartw. ex Benth. FACU Yellow‐and‐White Monkey‐Flower<br />

Mimulus biolettii Eastw. FAC Hetch Hetchy Monkey‐Flower<br />

Mimulus breviflorus Piper FACW Short‐Flower Monkey‐Flower<br />

Mimulus breweri (Greene) Coville FACU Brewer's Monkey‐Flower<br />

Mimulus cardinalis Dougl. ex Benth. FACW Scarlet Monkey‐Flower<br />

Mimulus congdonii B.L. Robins. FAC Congdon's Monkey‐Flower

---

Mimulus dentatus Nutt. ex Benth. OBL Coastal Monkey‐Flower<br />

Mimulus dentilobus B.L. Robins. & Fern. OBL Tooth‐Petal Monkey‐Flower<br />

Mimulus douglasii (Benth.) Gray FACW Brownies<br />

Mimulus eastwoodiae Rydb. OBL Eastwood's Monkey‐Flower<br />

Mimulus exiguus Gray FACU San Bernardino Mountain Monkey‐Flow<br />

Mimulus filicaulis S. Wats. FACW Slender‐Stem Monkey‐Flower<br />

Mimulus floribundus Lindl. OBL Purple‐Stem Monkey‐Flower<br />

Mimulus glabratus Kunth OBL Round‐Leaf Monkey‐Flower<br />

Mimulus glaucescens Greene OBL Shield‐Bract Monkey‐Flower<br />

Mimulus guttatus DC. OBL Seep Monkey‐Flower<br />

Mimulus inconspicuus Gray FACU Small‐Flower Monkey‐Flower<br />

Mimulus laciniatus Gray FAC Cut‐Leaf Monkey‐Flower<br />

Mimulus latidens (Gray) Greene OBL Broad‐Tooth Monkey‐Flower<br />

Mimulus lewisii Pursh FACW Great Purple Monkey‐Flower<br />

Mimulus moschatus Dougl. ex Lindl. FACW Muskflower<br />

Mimulus nanus Hook. & Arn. FACU Dwarf Purple Monkey‐Flower<br />

Mimulus nudatus Curran ex Greene OBL Bare Monkey‐Flower<br />

Mimulus parishii Greene FACU Parish's Monkey‐Flower<br />

Mimulus primuloides Benth. FACW Yellow Creeping Monkey‐Flower<br />

Mimulus pulchellus (E. Drew ex Greene) A.L. Grant FACW Yellow‐Lip Pansy Monkey‐Flower<br />

Mimulus purpureus A.L. Grant FACU Little Purple Monkey‐Flower<br />

Mimulus pygmaeus A.L. Grant OBL Egg Lake Monkey‐Flower<br />

Mimulus ringens L. OBL Allegheny Monkey‐Flower<br />

Mimulus rubellus Gray FAC Little Red‐Stem Monkey‐Flower<br />

Mimulus suksdorfii Gray FACU Miniature Monkey‐Flower<br />

Mimulus tilingii Regel OBL Subalpine Monkey‐Flower<br />

Mimulus tricolor Hartw. ex Lindl. OBL Tricolor Monkey‐Flower<br />

Mimulus washingtonensis Gandog. OBL Washington Monkey‐Flower<br />

Minuartia cali<strong>for</strong>nica (Gray) Mattf. FACU Cali<strong>for</strong>nia Stitchwort<br />

Minuartia obtusiloba (Rydb.) House FACU Alpine Stitchwort<br />

Minuartia rubella (Wahlenb.) Hiern. FACU Boreal Stitchwort<br />

Minuartia stricta (Sw.) Hiern. FAC Bog Stitchwort<br />

Mirabilis nyctaginea (Michx.) MacM. FACU Heart‐Leaf Four‐O'clock<br />

Miscanthus sinensis Anderss. FACW Chinese Silver Grass<br />

Mitella breweri Gray FAC Fea<strong>the</strong>ry Bishop's‐Cap<br />

Mitella caulescens Nutt. FAC Star Bishop's‐Cap<br />

Mitella diversifolia Greene FAC Angle‐Leaf Bishop's‐Cap<br />

Mitella nuda L. FACW Bare‐Stem Bishop's‐Cap<br />

Mitella ovalis Greene OBL Coastal Bishop's‐Cap<br />

Mitella pentandra Hook. FACW Five‐Stamen Bishop's‐Cap<br />

Mitella stauropetala Piper FAC Side‐Flower Bishop's‐Cap<br />

Mitella trifida Graham FAC Pacific Bishop's‐Cap<br />

Mitracarpus hirtus (L.) DC. FACU Tropical Girdlepod<br />

Modiola caroliniana (L.) G. Don FAC Carolina Bristle‐Mallow<br />

Moehringia lateriflora (L.) Fenzl FACU Blunt‐Leaf Grove‐Sandwort<br />

Mollugo cerviana (L.) Ser. FAC Thread‐Stem Carpetweed<br />

Mollugo verticillata L. FACU Green Carpetweed

---

Monanthochloe littoralis Engelm. OBL Shore Grass<br />

Monarda fistulosa L. FACU Oswego‐Tea<br />

Monardella australis Abrams FACU Sou<strong>the</strong>rn Mountainbalm<br />

Monardella linoides Gray FACU Flax‐Leaf Mountainbalm<br />

Monardella odoratissima Benth. FACU Alpine Mountainbalm<br />

Monardella viminea Greene FACU Willowy Mountainbalm<br />

Moneses uniflora (L.) Gray FACU Single‐Delight<br />

Monochoria vaginalis (Burm. f.) K. Presl ex Kunth OBL Heart‐Shape False Pickerelweed<br />

Monolepis nuttalliana (J.A. Schultes) Greene FAC Nuttall's Poverty‐Weed<br />

Monolopia congdonii (Gray) B.G. Baldwin FACU San Joaquin Woollythread<br />

Monotropa uniflora L. FACU One‐Flower Indian‐Pipe<br />

Montia chamissoi (Ledeb. ex Spreng.) Greene OBL Chamisso's Candy‐Flower<br />

Montia dichotoma (Nutt.) T.J. Howell FAC Dwarf Candy‐Flower<br />

Montia fontana L. OBL Fountain Candy‐Flower<br />

Montia howellii S. Wats. FACW Howell's Candy‐Flower<br />

Montia linearis (Dougl. ex Hook.) Greene FAC Linear‐Leaf Candy‐Flower<br />

Montia parvifolia (Moc. ex DC.) Greene FACW Little‐Leaf Candy‐Flower<br />

Morella cali<strong>for</strong>nica (Cham.) Wilbur FACW Pacific Bayberry<br />

Morus alba L. FACU White Mulberry<br />

Morus microphylla Buckl. FACU Texas Mulberry<br />

Muhlenbergia andina (Nutt.) A.S. Hitchc. FAC Fox‐Tail Muhly<br />

Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi FACW Alkali Muhly<br />

Muhlenbergia cali<strong>for</strong>nica Vasey FACW Cali<strong>for</strong>nia Muhly<br />

Muhlenbergia fili<strong>for</strong>mis (Thurb. ex S. Wats.) Rydb. FACW Pullup Muhly<br />

Muhlenbergia frondosa (Poir.) Fern. FACW Wire‐Stem Muhly<br />

Muhlenbergia glomerata (Willd.) Trin. FACW Spiked Muhly<br />

Muhlenbergia mexicana (L.) Trin. FAC Mexican Muhly<br />

Muhlenbergia minutissima (Steud.) Swallen FAC Least Muhly<br />

Muhlenbergia pectinata C.O. Goodding OBL Comb‐Top Muhly<br />

Muhlenbergia racemosa (Michx.) B.S.P. FACW Green Muhly<br />

Muhlenbergia ramulosa (Kunth) Swallen FACU Ponderosa Muhly<br />

Muhlenbergia richardsonis (Trin.) Rydb. FAC Matted Muhly<br />

Muhlenbergia rigens (Benth.) A.S. Hitchc. FAC Deer Grass<br />

Muhlenbergia schreberi J.F. Gmel. FACU Nimblewill<br />

Muhlenbergia sylvatica (Torr.) Torr. ex Gray FACW Woodland Muhly<br />

Muhlenbergia utilis (Torr.) A.S. Hitchc. FACW Aparejo Grass<br />

Muhlenbergia wrightii Vasey ex Coult. FACU Wright's Muhly<br />

Myoporum laetum G. Forst. FACU Ngaio‐Tree<br />

Myosotis arvensis (L.) Hill FAC Rough Forget‐Me‐Not<br />

Myosotis asiatica (Vesterg.) Schischkin & Sergievskaja FAC Asian Forget‐Me‐Not<br />

Myosotis discolor Pers. FACW Yellow Scorpion‐Grass<br />

Myosotis laxa Lehm. OBL Bay Forget‐Me‐Not<br />

Myosotis scorpioides L. FACW True Forget‐Me‐Not<br />

Myosotis sylvatica Ehrh. ex Hoffmann FAC Woodland Forget‐Me‐Not<br />

Myosotis verna Nutt. FAC Spring Forget‐Me‐Not<br />

Myosurus apetalus C. Gay OBL Bristly Mousetail<br />

Myosurus cupulatus S. Wats. FAC Arizona Mousetail

---

Myosurus minimus L. OBL Tiny Mousetail<br />

Myosurus sessilis S. Wats. FACW Vernal‐Pool Mousetail<br />

Myrica hartwegii S. Wats. FAC Sierran‐Bayberry<br />

Myriophyllum aquaticum (Vell.) Verdc. OBL Parrot's‐Fea<strong>the</strong>r<br />

Myriophyllum hippuroides Nutt. ex Torr. & Gray OBL <strong>West</strong>ern Water‐Milfoil<br />

Myriophyllum quitense Kunth OBL Andean Water‐Milfoil<br />

Myriophyllum sibiricum Komarov OBL Siberian Water‐Milfoil<br />

Myriophyllum spicatum L. OBL Eurasian Water‐Milfoil<br />

Myriophyllum verticillatum L. OBL Whorled Water‐Milfoil<br />

Najas flexilis (Willd.) Rostk. & Schmidt OBL Wavy Waternymph<br />

Najas gracillima (A. Braun ex Engelm.) Magnus OBL Slender Waternymph<br />

Najas graminea Delile OBL Ricefield Waternymph<br />

Najas guadalupensis (Spreng.) Magnus OBL Guadalupe Waternymph<br />

Najas marina L. OBL Holly‐Leaf Waternymph<br />

Nama stenocarpum Gray FACW Mud Fiddleleaf<br />

Nama torynophyllum Greenm. FACW Matted Fiddleleaf<br />

Nar<strong>the</strong>cium cali<strong>for</strong>nicum Baker OBL Cali<strong>for</strong>nia Bog Asphodel<br />

Nasturtium gambelii (S. Wats.) O.E. Schulz OBL Gambel's Watercress<br />

Nasturtium microphyllum Boenn. ex Reichenb. OBL One‐Row Watercress<br />

Nasturtium officinale Ait. f. OBL Watercress<br />

Navarretia breweri (Gray) Greene FAC Yellow Pincushion‐<strong>Plant</strong><br />

Navarretia capillaris (Kellogg) Kuntze FAC Miniature Pincushion‐<strong>Plant</strong><br />

Navarretia cotulifolia (Benth.) Hook. & Arn. OBL Cotula‐Leaf Pincushion‐<strong>Plant</strong><br />

Navarretia eriocephala Mason FAC Hoary Pincushion‐<strong>Plant</strong><br />

Navarretia fossalis Moran OBL Vernal‐Pool Pincushion‐<strong>Plant</strong><br />

Navarretia heterandra Mason OBL Tehama Pincushion‐<strong>Plant</strong><br />

Navarretia intertexta (Benth.) Hook. FACW Needle‐Leaf Pincushion‐<strong>Plant</strong><br />

Navarretia jepsonii V. Bailey ex Jepson FACW Jepson's Pincushion‐<strong>Plant</strong><br />

Navarretia leucocephala Benth. OBL White‐Flower Pincushion‐<strong>Plant</strong><br />

Navarretia mellita Greene FAC Honey‐Scented Pincushion‐<strong>Plant</strong><br />

Navarretia myersii Allen & Day OBL Myers' Pincushion‐<strong>Plant</strong><br />

Navarretia nigelli<strong>for</strong>mis Greene FACW Adobe Pincushion‐<strong>Plant</strong><br />

Navarretia peninsularis Greene FAC Baja Pincushion‐<strong>Plant</strong><br />

Navarretia prostrata (Gray) Greene OBL Prostrate Pincushion‐<strong>Plant</strong><br />

Navarretia saximontana S.C. Spencer FACW Rocky Mountain Pincushion‐<strong>Plant</strong><br />

Navarretia squarrosa (Eschsch.) Hook. & Arn. FACU Skunkweed<br />

Navarretia subuligera Greene FACU Awl‐Leaf Pincushion‐<strong>Plant</strong><br />

Navarretia tagetina Greene FACW Marigold Pincushion‐<strong>Plant</strong><br />

Neeragrostis reptans (Michx.) Nicora OBL Creeping Love Grass<br />

Nelumbo lutea Willd. OBL American Lotus<br />

Nemophila pedunculata Dougl. ex Benth. FAC Meadow Baby‐Blue‐Eyes<br />

Neostapfia colusana (Burtt‐Davy) Burtt‐Davy OBL Colusa Grass<br />

Nepeta cataria L. FACU Catnip<br />

Nephrolepis exaltata (L.) Schott FACU Boston Sword Fern<br />

Nicotiana attenuata Torr. ex S. Wats. FACU Coyote Tobacco<br />

Nicotiana glauca Graham FAC Tree Tobacco<br />

Nicotiana obtusifolia Mertens & Galeotti FACU Desert Tobacco

---

Nicotiana quadrivalvis Pursh FACU Indian Tobacco<br />

Nicotiana repanda Willd. ex Lehm. FAC Fiddle‐Leaf Tobacco<br />

Nitrophila mohavensis Munz & Roos FACW Amargosa Niterwort<br />

Nitrophila occidentalis (Moq.) S. Wats. FACW Boraxweed<br />

Nothoscordum bivalve (L.) Britt. FACU Crowpoison<br />

Nuphar lutea (L.) Sm. OBL Yellow Pond‐Lily<br />

Nymphaea alba L. OBL European White Water‐Lily<br />

Nymphaea mexicana Zucc. OBL Banana Water‐Lily<br />

Nymphaea odorata Ait. OBL American White Water‐Lily<br />

Nymphaea X thiona Ward OBL<br />

Nymphoides peltata (Gmel.) Kuntze OBL Yellow Floatingheart<br />

Oemleria cerasi<strong>for</strong>mis (Torr. & Gray ex Hook. & Arn.) Landon FACU Oso‐Berry<br />

Oenan<strong>the</strong> sarmentosa K. Presl ex DC. OBL Pacific Water‐Dropwort<br />

Oeno<strong>the</strong>ra biennis L. FACU King's‐Cureall<br />

Oeno<strong>the</strong>ra curtiflora W.L. Wagner & Hoch FACU Velvetweed<br />

Oeno<strong>the</strong>ra elata Kunth FACW Hooker's Evening‐Primrose<br />

Oeno<strong>the</strong>ra flava (A. Nels.) Garrett FAC Long‐Tube Evening‐Primrose<br />

Oeno<strong>the</strong>ra jamesii Torr. & Gray FACW Trumpet Evening‐Primrose<br />

Oeno<strong>the</strong>ra kunthiana (Spach) Munz FACU Kunth's Evening‐Primrose<br />

Oeno<strong>the</strong>ra laciniata Hill FAC Cut‐Leaf Evening‐Primrose<br />

Oeno<strong>the</strong>ra longissima Rydb. OBL Long‐Stem Evening‐Primrose<br />

Oeno<strong>the</strong>ra organensis Munz OBL Organ Mountain Evening‐Primrose<br />

Oeno<strong>the</strong>ra rhombipetala Nutt. ex Torr. & Gray FACU Greater Four‐Point Evening‐Primrose<br />

Oeno<strong>the</strong>ra rosea L'Hér. ex Ait. FACW Rose Evening‐Primrose<br />

Oeno<strong>the</strong>ra tetraptera Cav. FAC Four‐Wing Evening‐Primrose<br />

Oeno<strong>the</strong>ra texensis Raven & Parnell FACW Texas Evening‐Primrose<br />

Oeno<strong>the</strong>ra villosa Thunb. FAC Hairy Evening‐Primrose<br />

Oligoneuron rigidum (L.) Small FACU Hard‐Leaf Flat‐Top‐Goldenrod<br />

Olsynium douglasii (A. Dietr.) Bickn. FACU Grasswidow<br />

Oncosiphon piluliferum (L. f.) Källersjö FACU Stinknet<br />

Ophioglossum cali<strong>for</strong>nicum Prantl FAC Cali<strong>for</strong>nia Adder's‐Tongue<br />

Ophioglossum engelmannii Prantl FACW Limestone Adder's‐Tongue<br />

Ophioglossum pusillum Raf. FACW Nor<strong>the</strong>rn Adder's‐Tongue<br />

Ophioglossum vulgatum L. FAC Sou<strong>the</strong>rn Adder's‐Tongue<br />

Oplopanax horridus (Small) Miq. FAC Devil's‐Club<br />

Orcuttia cali<strong>for</strong>nica Vasey OBL Cali<strong>for</strong>nia Orcutt Grass<br />

Orcuttia inaequalis Hoover OBL San Joaquin Valley Orcutt Grass<br />

Orcuttia pilosa Hoover OBL Hairy Orcutt Grass<br />

Orcuttia tenuis A.S. Hitchc. OBL Slender Orcutt Grass<br />

Orcuttia viscida (Hoover) J. Reeder OBL Sacramento Orcutt Grass<br />

Oreostemma alpigenum (Torr. & Gray) Greene FAC Tundra Mountaincrown<br />

Oreostemma elatum (Greene) Greene FACW Plumas Mountaincrown<br />

Ornithogalum umbellatum L. FACU Sleepydick<br />

Orobanche riparia Collins FACW River Broom‐Rape<br />

Orobanche uniflora L. FACU Naked Broom‐Rape<br />

Orogenia fusi<strong>for</strong>mis S. Wats. FACW Cali<strong>for</strong>nia Indian‐Potato<br />

Orthilia secunda (L.) House FACU Sidebells

---

Orthocarpus bracteosus Benth. FAC Rosy Owl‐Clover<br />

Orthocarpus luteus Nutt. FACU Golden‐Tongue Owl‐Clover<br />

Oryza sativa L. OBL Cultivated Rice<br />

Osmorhiza berteroi DC. FACU Mountain Sweet‐Cicely<br />

Osmorhiza longistylis (Torr.) DC. FACU Aniseroot<br />

Osmorhiza purpurea (Coult. & Rose) Suksdorf FAC Purple Sweet‐Cicely<br />

Ostrya knowltonii Sarg. FAC Knowlton's Hop‐Hornbeam<br />

Ottelia alismoides (L.) Pers. OBL Duck‐Lettuce<br />

Oxalis corniculata L. FACU Creeping Yellow Wood‐Sorrel<br />

Oxalis dillenii Jacq. FACU Slender Yellow Wood‐Sorrel<br />

Oxalis oregana Nutt. FACU Redwood‐Sorrel<br />

Oxalis stricta L. FACU Upright Yellow Wood‐Sorrel<br />

Oxalis trilliifolia Hook. FAC Trillium‐Leaf Wood‐Sorrel<br />

Oxypolis fendleri (Gray) Heller FACW Fendler's Cowbane<br />

Oxypolis occidentalis Coult. & Rose OBL <strong>West</strong>ern Cowbane<br />

Oxyria digyna (L.) Hill FACU Mountain‐Sorrel<br />

Oxytenia acerosa Nutt. FACU Copperweed<br />

Oxytropis deflexa (Pallas) DC. FACU Pendant‐Pod Locoweed<br />

Oxytropis oreophila Gray FACU Mountain Locoweed<br />

Oxytropis parryi Gray FACU Parry's Locoweed<br />

Oxytropis splendens Dougl. ex Hook. FAC Whorled Locoweed<br />

Packera bernardina (Greene) W.A. Weber & A. Löve FACU San Bernardino Groundsel<br />

Packera bolanderi (Gray) W.A. Weber & A. Löve FAC Bolander's Groundsel<br />

Packera clevelandii (Greene) W.A. Weber & A. Löve FACW Cleveland's Groundsel<br />

Packera crocata (Rydb.) W.A. Weber & A. Löve FAC Saffron Groundsel<br />

Packera cymbalaria (Pursh) W.A. Weber & A. Löve FACU Dwarf Arctic Groundsel<br />

Packera debilis (Nutt.) W.A. Weber & A. Löve FACW Weak‐Stem Groundsel<br />

Packera dimorphophylla (Greene) W.A. Weber & A. Löve FACU Two‐Leaf Groundsel<br />

Packera hartiana (Heller) W.A. Weber & A. Löve FACW Hart's Groundsel<br />

Packera indecora (Greene) A.& D. Löve FACW Rayless Mountain Groundsel<br />

Packera macounii (Greene) W.A. Weber & A. Löve FACU Siskiyou Mountain Groundsel<br />

Packera obovata (Muhl. ex Willd.) W.A. Weber & A. Löve FACU Round‐Leaf Groundsel<br />

Packera pauciflora (Pursh) A.& D. Löve FAC Rayless Alpine Groundsel<br />

Packera paupercula (Michx.) A.& D. Löve FACW Balsam Groundsel<br />

Packera pseudaurea (Rydb.) W.A. Weber & A. Löve FACW Streambank Groundsel<br />

Packera streptanthifolia (Greene) W.A. Weber & A. Löve FACU Rocky Mountain Groundsel<br />

Packera subnuda (DC.) D.K. Trock & T.M. Barkl. FACW Buek's Groundsel<br />

Packera tampicana (DC.) C. Jeffrey FACW Great Plains Groundsel<br />

Pancratium maritimum L. FACU Sea‐Daffodil<br />

Panicum amarum Ell. FACU Bitter Panic Grass<br />

Panicum capillare L. FACU Common Panic Grass<br />

Panicum coloratum L. FACW Blue Panic Grass<br />

Panicum dichotomiflorum Michx. FACW Fall Panic Grass<br />

Panicum flexile (Gattinger) Scribn. FAC Wiry Panic Grass<br />

Panicum hillmanii Chase FACU Hillman's Panic Grass<br />

Panicum repens L. FAC Torpedo Grass<br />

Panicum rigidulum Bosc ex Nees FACW Red‐Top Panic Grass

---

Panicum virgatum L. FACW Wand Panic Grass<br />

Parapholis incurva (L.) C.E. Hubbard FAC Curved Sickle Grass<br />

Parapholis strigosa (Dumort.) C.E. Hubbard OBL European Sickle Grass<br />

Para<strong>the</strong>lypteris nevadensis (Baker) Holttum FAC<br />

Parentucellia viscosa (L.) Caruel FAC Yellow Glandweed<br />

Parietaria hespera Hinton FACU Rillita Pellitory<br />

Parietaria pensylvanica Muhl. ex Willd. FACU Pennsylvania Pellitory<br />

Parkinsonia aculeata L. FAC Mexican Palo‐Verde<br />

Parnassia cali<strong>for</strong>nica (Gray) Greene OBL Cali<strong>for</strong>nia Grass‐of‐Parnassus<br />

Parnassia cirrata Piper OBL San Bernardino Grass‐of‐Parnassus<br />

Parnassia fimbriata Koenig OBL Fringed Grass‐of‐Parnassus<br />

Parnassia kotzebuei Cham. ex Spreng. OBL Kotzebue's Grass‐of‐Parnassus<br />

Parnassia palustris L. OBL Marsh Grass‐of‐Parnassus<br />

Paronychia ahartii Ertter FAC Ahart's Nailwort<br />

Par<strong>the</strong>nium hysterophorus L. FAC Santa Maria Feverfew<br />

Par<strong>the</strong>nocissus quinquefolia (L.) Planch. FAC Virginia‐Creeper<br />

Par<strong>the</strong>nocissus vitacea (Knerr) A.S. Hitchc. FACU Thicket‐Creeper<br />

Pascopyrum smithii (Rydb.) A. Löve FAC <strong>West</strong>ern‐Wheat Grass<br />

Paspalum dilatatum Poir. FAC Golden Crown Grass<br />

Paspalum distichum L. FACW Jointed Crown Grass<br />

Paspalum notatum Flueggé FAC Bahia Grass<br />

Paspalum plicatulum Michx. FAC Brown‐Seed Crown Grass<br />

Paspalum pubiflorum Rupr. ex Fourn. FACW Hairy‐Seed Crown Grass<br />

Paspalum urvillei Steud. FAC Vasey's Grass<br />

Paspalum vaginatum Sw. FACW Seashore Crown Grass<br />

Paspalum virgatum L. FACW Talquezal<br />

Passiflora foetida L. FAC Scarlet‐Fruit Passion‐Flower<br />

Pedicularis attollens Gray OBL Little Elephant's‐Head<br />

Pedicularis canadensis L. FAC Canadian Lousewort<br />

Pedicularis contorta Benth. FACU White Coil‐Beak Lousewort<br />

Pedicularis crenulata Benth. FACW Purple‐Flower Lousewort<br />

Pedicularis groenlandica Retz. OBL Bull Elephant's‐Head<br />

Pedicularis parryi Gray FACU Parry's Lousewort<br />

Pedicularis procera Gray FACU Giant Lousewort<br />

Pedicularis sudetica Willd. FACW Sudetic Lousewort<br />

Pellaea ternifolia (Cav.) Link FACU Trans‐Pecos Cliffbrake<br />

Peltandra virginica (L.) Schott OBL Green Arrow‐Arum<br />

Pennisetum clandestinum Hochst. ex Chiov. FACU Kikuyu Grass<br />

Pennisetum polystachion (L.) J.A. Schultes FAC Mission Grass<br />

Pennisetum purpureum Schumacher FACU Elephant Grass<br />

Penstemon attenuatus Dougl. ex Lindl. FACU Sulphur Beardtongue<br />

Penstemon baccharifolius Hook. FACU Baccharis‐Leaf Beardtongue<br />

Penstemon globosus (Piper) Pennell & Keck FAC Globe Beardtongue<br />

Penstemon heterodoxus Gray FACU Sierran Beardtongue<br />

Penstemon lyallii (Gray) Gray FACU Lyall's Beardtongue<br />

Penstemon procerus Dougl. ex Graham FAC Pincushion Beardtongue<br />

Penstemon pseudoputus (Crosswhite) N. Holmgren FACU Kaibab Plateau Beardtongue

---

Penstemon rydbergii A. Nels. FACU Meadow Beardtongue<br />

Penstemon serrulatus Menzies ex Sm. FACU Cascade Beardtongue<br />

Penstemon virgatus Gray FACU Upright Blue Beardtongue<br />

Penstemon whippleanus Gray FACU Dark Beardtongue<br />

Pentachaeta fragilis Brandeg. FAC Fragile Pygmy Daisy<br />

Perideridia cali<strong>for</strong>nica (Torr.) A. Nels. & J.F. Macbr. FACW Cali<strong>for</strong>nia Yampah<br />

Perideridia gairdneri (Hook. & Arn.) Mathias FAC Common Yampah<br />

Perideridia howellii (Coult. & Rose) Mathias FACW Howell's Yampah<br />

Perideridia parishii (Coult. & Rose) A. Nels. & J.F. Macbr. FAC Parish's Yampah<br />

Persicaria amphibia (L.) S.F. Gray p.p. OBL Water Smartweed<br />

Persicaria bicornis (Raf.) Nieuwl. FACW Pink Knotweed<br />

Persicaria capitata (Buch.‐Ham. ex D. Don) Gross. FACU Pink‐Head Smartweed<br />

Persicaria glabra (Willd.) M. Gómez OBL Smooth Smartweed<br />

Persicaria hydropiper (L.) Delarbre OBL Mild Water‐Pepper<br />

Persicaria hydropiperoides (Michx.) Small OBL Swamp Smartweed<br />

Persicaria lapathifolia (L.) S.F. Gray FACW Dock‐Leaf Smartweed<br />

Persicaria maculosa S.F. Gray FACW Lady's‐Thumb<br />

Persicaria orientalis (L.) Spach FACW Kiss‐Me‐Over‐<strong>the</strong>‐Garden‐Gate<br />

Persicaria pensylvanica (L.) M. Gómez FACW Pinkweed<br />

Persicaria punctata (Ell.) Small OBL Dotted Smartweed<br />

Persicaria sagittata (L.) Gross. OBL Arrow‐Leaf Tearthumb<br />

Persicaria setacea (Baldw.) Small OBL Bog Smartweed<br />

Persicaria wallichii Greuter & Burdet FAC Garden Smartweed<br />

Petasites frigidus (L.) Fries FACW Arctic Sweet‐Colt's‐Foot<br />

Phacelia amabilis Constance FACU Saline Valley Scorpion‐Weed<br />

Phacelia distans Benth. OBL Distant Scorpion‐Weed<br />

Phacelia heterophylla Pursh FACU Variable‐Leaf Scorpion‐Weed<br />

Phacelia inundata J.T. Howell FACW Playa Yellow Scorpion‐Weed<br />

Phacelia inyoensis (J.F. Macbr.) J.T. Howell FAC Inyo Yellow Scorpion‐Weed<br />

Phacelia lemmonii Gray FACU Lemmon's Scorpion‐Weed<br />

Phacelia orogenes Brand FACU Mountain Scorpion‐Weed<br />

Phacelia parishii Gray FACU Parish's Scorpion‐Weed<br />

Phacelia procera Gray FAC Tall Scorpion‐Weed<br />

Phacelia ramosissima Dougl. ex Lehm. FACU Branched Scorpion‐Weed<br />

Phacelia tetramera J.T. Howell FAC Four‐Part Yellow Scorpion‐Weed<br />

Phalacroseris bolanderi Gray OBL Bolander's Mock Dandelion<br />

Phalaris angusta Nees ex Trin. FACW Timothy Canary Grass<br />

Phalaris aquatica L. FACU Harding Grass<br />

Phalaris arundinacea L. FACW Reed Canary Grass<br />

Phalaris brachystachys Link FACW Short‐Spike Canary Grass<br />

Phalaris cali<strong>for</strong>nica Hook. & Arn. FAC Cali<strong>for</strong>nia Canary Grass<br />

Phalaris canariensis L. FACU Common Canary Grass<br />

Phalaris caroliniana Walt. FACW May Grass<br />

Phalaris lemmonii Vasey FACW Lemmon's Canary Grass<br />

Phalaris paradoxa L. FAC Mediterranean Canary Grass<br />

Phegopteris connectilis (Michx.) Watt FACU Narrow Beech Fern<br />

Phippsia algida (Soland.) R. Br. OBL Ice Grass

---

Phleum alpinum L. FAC Mountain Timothy<br />

Phleum pratense L. FACU Common Timothy<br />

Phlox idahonis Wherry FACW Clearwater Phlox<br />

Phlox kelseyi Britt. FACW Marsh Phlox<br />

Phlox paniculata L. FACU Fall Phlox<br />

Phlox pilosa L. FAC Downy Phlox<br />

Phragmites australis (Cav.) Trin. ex Steud. FACW Common Reed<br />

Phryma leptostachya L. FACU American Lopseed<br />

Phyla cuneifolia (Torr.) Greene FAC Wedgeleaf<br />

Phyla fruticosa (P. Mill.) Kennedy FAC Diamond‐Leaf Frogfruit<br />

Phyla lanceolata (Michx.) Greene OBL Nor<strong>the</strong>rn Frogfruit<br />

Phyla nodiflora (L.) Greene FACW Turkey‐Tangle<br />

Phyllanthus caroliniensis Walt. FAC Carolina Leaf‐Flower<br />

Phyllodoce breweri (Gray) Heller FAC Red Mountain‐Heath<br />

Phyllodoce empetri<strong>for</strong>mis (Sm.) D. Don FACU Pink Mountain‐Heath<br />

Phyllodoce glanduliflora (Hook.) Coville FACU Yellow Mountain‐Heath<br />

Phyllospadix scouleri Hook. OBL Scouler's Surf‐Grass<br />

Phyllospadix torreyi S. Wats. OBL Torrey's Surf‐Grass<br />

Physalis pubescens L. FACU Husk‐Tomato<br />

Physaria gracilis (Hook.) O'Kane & Al‐Shehbaz FACW Spreading Bladderpod<br />

Physocarpus capitatus (Pursh) Kuntze FACW Pacific Ninebark<br />

Physocarpus opulifolius (L.) Maxim. FACU Atlantic Ninebark<br />

Physostegia parviflora Nutt. ex Gray FACW <strong>West</strong>ern False Dragonhead<br />

Physostegia virginiana (L.) Benth. FACW Obedient‐<strong>Plant</strong><br />

Phytolacca americana L. FAC American Pokeweed<br />

Picea engelmannii Parry ex Engelm. FACU Engelmann's Spruce<br />

Picea glauca (Moench) Voss FAC White Spruce<br />

Picea pungens Engelm. FAC Blue Spruce<br />

Picea sitchensis (Bong.) Carr. FAC Sitka Spruce<br />

Pilularia americana A. Braun OBL American Pillwort<br />

Pinguicula macroceras Link OBL Cali<strong>for</strong>nia Butterwort<br />

Pinus contorta Dougl. ex Loud. FAC Lodgepole Pine<br />

Pinus monticola Dougl. ex D. Don FACU <strong>West</strong>ern White Pine<br />

Pinus ponderosa P.& C. Lawson FACU Ponderosa Pine<br />

Piperia unalascensis (Spreng.) Rydb. FACU Alaska Rein Orchid<br />

Pistia stratiotes L. OBL Water‐Lettuce<br />

Plagiobothrys acanthocarpus (Piper) I.M. Johnston OBL Adobe Popcorn‐Flower<br />

Plagiobothrys austiniae (Greene) I.M. Johnston OBL Austin's Popcorn‐Flower<br />

Plagiobothrys bracteatus (T.J. Howell) I.M. Johnston FACW Bracted Popcorn‐Flower<br />

Plagiobothrys chorisianus (Cham.) I.M. Johnston OBL Artist's Popcorn‐Flower<br />

Plagiobothrys distantiflorus (Piper) I.M. Johnston ex M.E. Peck OBL Cali<strong>for</strong>nia Popcorn‐Flower<br />

Plagiobothrys figuratus (Piper) I.M. Johnston ex M.E. Peck FACW Fragrant Popcorn‐Flower<br />

Plagiobothrys glaber (Gray) I.M. Johnston OBL Hairless Popcorn‐Flower<br />

Plagiobothrys glyptocarpus (Piper) I.M. Johnston FACW Sculptured Popcorn‐Flower<br />

Plagiobothrys greenei (Gray) I.M. Johnston FACW Greene's Popcorn‐Flower<br />

Plagiobothrys humistratus (Greene) I.M. Johnston OBL Dwarf Popcorn‐Flower<br />

Plagiobothrys hystriculus (Piper) I.M. Johnston FACW Bearded Popcorn‐Flower

---

Plagiobothrys leptocladus (Greene) I.M. Johnston OBL Alkali Popcorn‐Flower<br />

Plagiobothrys lithocaryus (Greene ex Gray) I.M. Johnston FACW Mayacamas Popcorn‐Flower<br />

Plagiobothrys mollis (Gray) I.M. Johnston FACW Soft Popcorn‐Flower<br />

Plagiobothrys nothofulvus (Gray) Gray FAC Rusty Popcorn‐Flower<br />

Plagiobothrys parishii I.M. Johnston OBL Parish's Popcorn‐Flower<br />

Plagiobothrys reticulatus (Piper) I.M. Johnston FACW Netted Popcorn‐Flower<br />

Plagiobothrys salsus (Brandeg.) I.M. Johnston FACW Salty Popcorn‐Flower<br />

Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston FACW Meadow Popcorn‐Flower<br />

Plagiobothrys stipitatus (Greene) I.M. Johnston FACW Stalked Popcorn‐Flower<br />

Plagiobothrys strictus (Greene) I.M. Johnston OBL Calistoga Popcorn‐Flower<br />

Plagiobothrys tenellus (Nutt. ex Hook.) Gray FACU Pacific Popcorn‐Flower<br />

Plagiobothrys tener (Greene) I.M. Johnston OBL Slender Popcorn‐Flower<br />

Plagiobothrys trachycarpus (Gray) I.M. Johnston FACW Rough‐Fruit Popcorn‐Flower<br />

<strong>Plant</strong>ago australis Lam. FACW Mexican <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago bigelovii Gray OBL Annual Coastal <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago coronopus L. FACW Buck‐Horn <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago elongata Pursh FACW Prairie <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago eriopoda Torr. FACW Red‐Woolly <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago firma Kunze ex Walp. FACW Chilean <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago heterophylla Nutt. FAC Slender <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago lanceolata L. FAC English <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago major L. FAC Great <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago maritima L. FACW Goosetongue<br />

<strong>Plant</strong>ago ovata Forssk. FACU Blond <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago rhodosperma Dcne. FAC Red‐Seed <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago rugelii Dcne. FAC Black‐Seed <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago subnuda Pilger FACW Tall Coastal <strong>Plant</strong>ain<br />

<strong>Plant</strong>ago virginica L. FACU Pale‐Seed <strong>Plant</strong>ain<br />

Platan<strong>the</strong>ra dilatata (Pursh) Lindl. ex Beck FACW Scentbottle<br />

Platan<strong>the</strong>ra huronensis (Nutt.) Lindl. OBL Lake Huron Green Orchid<br />

Platan<strong>the</strong>ra limosa Lindl. OBL Thurber's Bog Orchid<br />

Platan<strong>the</strong>ra obtusata (Banks ex Pursh) Lindl. FACW Blunt‐Leaf Orchid<br />

Platan<strong>the</strong>ra orbiculata (Pursh) Lindl. FAC Lesser Round‐Leaf Orchid<br />

Platan<strong>the</strong>ra purpurascens (Rydb.) Sheviak & Jennings OBL Purple‐Petal Bog Orchid<br />

Platan<strong>the</strong>ra sparsiflora (S. Wats.) Schlechter FACW Canyon Bog Orchid<br />

Platan<strong>the</strong>ra stricta Lindl. FACW Slender Bog Orchid<br />

Platan<strong>the</strong>ra X lassenii Schrenk FACW<br />

Platanus occidentalis L. FAC American Sycamore<br />

Platanus racemosa Nutt. FAC Cali<strong>for</strong>nia Sycamore<br />

Platanus wrightii S. Wats. FACW Arizona Sycamore<br />

Plectritis ciliosa (Greene) Jepson FACU Long‐Spur Seablush<br />

Plectritis congesta (Lindl.) DC. FACU Short‐Spur Seablush<br />

Plectritis macrocera Torr. & Gray FACU White Seablush<br />

Pleuropogon cali<strong>for</strong>nicus (Nees) Benth. ex Vasey OBL Cali<strong>for</strong>nia False Semaphore Grass<br />

Pleuropogon hooverianus (L. Benson) J.T. Howell FACW North Coast False Semaphore Grass<br />

Pleuropogon oregonus Chase OBL Oregon False Semaphore Grass<br />

Pleuropogon refractus (Gray) Benth. ex Vasey OBL Nodding False Semaphore Grass

---

Pluchea odorata (L.) Cass. FACW Sweetscent<br />

Pluchea sericea (Nutt.) Coville FACW Arrow‐Weed<br />

Plumbago zeylanica L. FAC Wild Leadwort<br />

Poa abbreviata R. Br. FACU Nor<strong>the</strong>rn Blue Grass<br />

Poa alpina L. FAC Alpine Blue Grass<br />

Poa annua L. FACU Annual Blue Grass<br />

Poa arctica R. Br. FACU Arctic Blue Grass<br />

Poa arida Vasey FAC Prairie Blue Grass<br />

Poa arnowiae Soreng FACU Arnow's Blue Grass<br />

Poa atropurpurea Scribn. FACW San Bernardino Blue Grass<br />

Poa compressa L. FACU Flat‐Stem Blue Grass<br />

Poa douglasii Nees FACU Seashore Blue Grass<br />

Poa interior Rydb. FAC<br />

Poa leibergii Scribn. FACU Leiberg's Blue Grass<br />

Poa leptocoma Trin. FACW Marsh Blue Grass<br />

Poa napensis Beetle OBL Napa Blue Grass<br />

Poa nemoralis L. FAC Forest Blue Grass<br />

Poa nervosa (Hook.) Vasey FACU Hooker's Blue Grass<br />

Poa palustris L. FAC Fowl Blue Grass<br />

Poa pratensis L. FAC Kentucky Blue Grass<br />

Poa reflexa Vasey & Scribn. FAC Nodding Blue Grass<br />

Poa secunda J. Presl FACU Curly Blue Grass<br />

Poa stebbinsii Soreng FACU Subalpine Blue Grass<br />

Poa stenantha Trin. FACU Narrow‐Flower Blue Grass<br />

Poa trivialis L. FACW Rough‐Stalk Blue Grass<br />

Poa unilateralis Scribn. FACU San Francisco Blue Grass<br />

Podagrostis humilis (Vasey) Björkman FACW Alpine False Bent<br />

Pogogyne abramsii J.T. Howell OBL San Diego Mesa‐Mint<br />

Pogogyne clareana J.T. Howell FACU Santa Lucia Mesa‐Mint<br />

Pogogyne douglasii Benth. OBL Douglas' Mesa‐Mint<br />

Pogogyne floribunda Jokerst OBL Profuse‐Flower Mesa‐Mint<br />

Pogogyne nudiuscula Gray OBL Otay Mesa‐Mint<br />

Pogogyne serpylloides (Torr.) Gray FACW Thyme‐Leaf Mesa‐Mint<br />

Pogogyne ziziphoroides Benth. OBL Sacramento Mesa‐Mint<br />

Polanisia dodecandra (L.) DC. FACU Red‐Whisker Clammyweed<br />

Polemonium foliosissimum Gray FAC Towering Jacob's‐Ladder<br />

Polemonium micranthum Benth. FACU Annual Jacob's‐Ladder<br />

Polemonium occidentale Greene FACW <strong>West</strong>ern Jacob's‐Ladder<br />

Polemonium pauciflorum S. Wats. FACW Few‐Flower Jacob's‐Ladder<br />

Polyctenium fremontii (S. Wats.) Greene FAC Desert Combleaf<br />

Polyctenium williamsiae Rollins FAC Washoe Combleaf<br />

Polygala cornuta Kellogg FACW Sierran Milkwort<br />

Polygala verticillata L. FACU Whorled Milkwort<br />

Polygonatum biflorum (Walt.) Ell. FACU King Solomon's‐Seal<br />

Polygonum achoreum Blake FACU Lea<strong>the</strong>ry Knotweed<br />

Polygonum argyrocoleon Steud. ex Kunze FAC Silver‐Sheath Knotweed<br />

Polygonum austiniae Greene FACU Mrs. Austin's Knotweed

---

Polygonum aviculare L. FACW Yard Knotweed<br />

Polygonum douglasii Greene FACU Douglas' Knotweed<br />

Polygonum engelmannii Greene FACU Engelmann's Knotweed<br />

Polygonum erectum L. FACU Erect Knotweed<br />

Polygonum fowleri B.L. Robins. FACW Fowler's Knotweed<br />

Polygonum majus (Meisn.) Piper FACU Wiry Knotweed<br />

Polygonum marinense Mert. & Raven OBL Marin Knotweed<br />

Polygonum minimum S. Wats. FACU Zigzag Knotweed<br />

Polygonum parryi Greene FAC Parry's Knotweed<br />

Polygonum patulum Bieb. FACW Bellard's Knotweed<br />

Polygonum polygaloides Wallich ex Meisn. FACW White‐Margin Knotweed<br />

Polygonum ramosissimum Michx. FAC Yellow‐Flower Knotweed<br />

Polygonum sawatchense Small FACU<br />

Polygonum spergularii<strong>for</strong>me Meisn. ex Small FACU Fall Knotweed<br />

Polygonum striatulum B.L. Robins. FACW Striped Knotweed<br />

Polypogon australis Brongn. FACW Chilean Rabbit's‐Foot Grass<br />

Polypogon elongatus Kunth OBL Streambank Rabbit's‐Foot Grass<br />

Polypogon fugax Nees ex Steud. FACU Hill Rabbit's‐Foot Grass<br />

Polypogon interruptus Kunth FACW Ditch Rabbit's‐Foot Grass<br />

Polypogon maritimus Willd. OBL Maritime Rabbit's‐Foot Grass<br />

Polypogon monspeliensis (L.) Desf. FACW Annual Rabbit's‐Foot Grass<br />

Polypogon viridis (Gouan) Breistr. FACW Beardless Rabbit's‐Foot Grass<br />

Polypremum procumbens L. FACU Juniper‐Leaf<br />

Polystichum lonchitis (L.) Roth FACU Nor<strong>the</strong>rn Holly Fern<br />

Polystichum munitum (Kaulfuss) K. Presl FACU Pineland Sword Fern<br />

Populus angustifolia James FACW Narrow‐Leaf Cottonwood<br />

Populus balsamifera L. FAC Balsam Poplar<br />

Populus deltoides Bartr. ex Marsh. FAC Eastern Cottonwood<br />

Populus tremuloides Michx. FACU Quaking Aspen<br />

Populus X acuminata Rydb. (pro sp.) FAC<br />

Populus X hinckleyana Correll (pro sp.) FAC<br />

Porterella carnosula (Hook. & Arn.) Torr. OBL Porterplant<br />

Portulaca halimoides L. FAC Silk‐Cotton Purslane<br />

Portulaca oleracea L. FAC Little‐Hogweed<br />

Portulaca pilosa L. FACU Kiss‐Me‐Quick<br />

Portulaca umbraticola Kunth FACU Wing‐Pod Purslane<br />

Potamogeton alpinus Balbis OBL Reddish Pondweed<br />

Potamogeton amplifolius Tuckerman OBL Large‐Leaf Pondweed<br />

Potamogeton clystocarpus Fern. OBL Little Aguja Pondweed<br />

Potamogeton crispus L. OBL Curly Pondweed<br />

Potamogeton diversifolius Raf. OBL Waterthread<br />

Potamogeton epihydrus Raf. OBL Ribbon‐Leaf Pondweed<br />

Potamogeton foliosus Raf. OBL Leafy Pondweed<br />

Potamogeton friesii Rupr. OBL Flat‐Stalk Pondweed<br />

Potamogeton gramineus L. OBL Grassy Pondweed<br />

Potamogeton illinoensis Morong OBL Illinois Pondweed<br />

Potamogeton natans L. OBL Floating Pondweed

---

Potamogeton nodosus Poir. OBL Long‐Leaf Pondweed<br />

Potamogeton obtusifolius Mert. & Koch OBL Blunt‐Leaf Pondweed<br />

Potamogeton praelongus Wulfen OBL White‐Stem Pondweed<br />

Potamogeton pusillus L. OBL Small Pondweed<br />

Potamogeton richardsonii (Benn.) Rydb. OBL Red‐Head Pondweed<br />

Potamogeton robbinsii Oakes OBL Fern Pondweed<br />

Potamogeton strictifolius Benn. OBL Straight‐Leaf Pondweed<br />

Potamogeton zosteri<strong>for</strong>mis Fern. OBL Flat‐Stem Pondweed<br />

Potentilla argentea L. FACU Silver‐Leaf Cinquefoil<br />

Potentilla basaltica Tiehm & Ertter FACW Soldier Meadows Cinquefoil<br />

Potentilla biennis Greene FACW Biennial Cinquefoil<br />

Potentilla diversifolia Lehm. FACU Mountain‐Meadow Cinquefoil<br />

Potentilla drummondii Lehm. FAC Drummond's Cinquefoil<br />

Potentilla flabellifolia Hook. ex Torr. & Gray FACW Fringe‐Leaf Cinquefoil<br />

Potentilla glandulosa Lindl. FAC Sticky Cinquefoil<br />

Potentilla gracilis Dougl. ex Hook. FAC Graceful Cinquefoil<br />

Potentilla hickmanii Eastw. FACW Hickman's Cinquefoil<br />

Potentilla millefolia Rydb. FACW Cut‐Leaf Cinquefoil<br />

Potentilla multijuga Lehm. OBL Ballona Cinquefoil<br />

Potentilla nana Willd. ex Schlecht. FAC Boreal Cinquefoil<br />

Potentilla newberryi Gray OBL Newberry's Cinquefoil<br />

Potentilla norvegica L. FAC Norwegian Cinquefoil<br />

Potentilla paradoxa Nutt. FACW Bushy Cinquefoil<br />

Potentilla pensylvanica L. FACU Pennsylvania Cinquefoil<br />

Potentilla plattensis Nutt. FACW Platte River Cinquefoil<br />

Potentilla rivalis Nutt. FACW Brook Cinquefoil<br />

Potentilla rubricaulis Lehm. FACU Rocky Mountain Cinquefoil<br />

Potentilla thurberi Gray FACW Scarlet Cinquefoil<br />

Prenan<strong>the</strong>s racemosa Michx. FACU Purple Rattlesnake‐Root<br />

Primula alcalina Cholewa & D. Henderson OBL Blue‐Dome Primrose<br />

Primula angustifolia Torr. FACU Alpine Primrose<br />

Primula capillaris N.& A. Holmgren FACW Ruby Mountain Primrose<br />

Primula cusickiana (Gray) Gray FAC Wallowa Primrose<br />

Primula egaliksensis Wormsk. ex Hornem. OBL Greenland Primrose<br />

Primula incana M.E. Jones OBL Silvery Primrose<br />

Primula parryi Gray FAC Brook Primrose<br />

Primula rusbyi Greene FAC Rusby's Primrose<br />

Primula suffrutescens Gray FAC Sierran Primrose<br />

Primula tetrandra (Suksdorf ex Greene) A.R. Mast & Reveal FACW<br />

Proboscidea louisianica (P. Mill.) Thellung FACU Ram's‐Horn<br />

Prosartes trachycarpa S. Wats. FACU Rough‐Fruit Fairybells<br />

Prosopis pubescens Benth. FAC American Screw‐Bean<br />

Prosopis velutina Woot. FACU Velvet Mesquite<br />

Prunella vulgaris L. FACU Common Selfheal<br />

Prunus americana Marsh. FACU American Plum<br />

Prunus caroliniana Ait. FACU Carolina Laurel Cherry<br />

Prunus emarginata (Dougl. ex Hook.) D. Dietr. FACU Bitter Cherry

---

Prunus pensylvanica L. f. FACU Fire Cherry<br />

Prunus serotina Ehrh. FACU Black Cherry<br />

Prunus virginiana L. FAC Choke Cherry<br />

Psathyrotes annua (Nutt.) Gray FACU Mealy Turtleback<br />

Pseudognaphalium canescens (DC.) W.A. Weber FACU Wright's Rabbit‐Tobacco<br />

Pseudognaphalium luteoalbum (L.) Hilliard & Burtt FAC Jersey Rabbit‐Tobacco<br />

Pseudognaphalium stramineum (Kunth) A. Anderb. FAC Cotton‐Batting‐<strong>Plant</strong><br />

Pseudotsuga menziesii (Mirbel) Franco FACU Douglas‐Fir<br />

Psidium cattleianum Sabine FACU Purple Strawberry Guava<br />

Psilactis asteroides Gray FACW New Mexico Bare‐Ray‐Aster<br />

Psilocarphus brevissimus Nutt. FACW Dwarf Woollyheads<br />

Psilocarphus chilensis Gray FACW Chilean Woollyheads<br />

Psilocarphus elatior (Gray) Gray FACW Tall Woollyheads<br />

Psilocarphus oregonus Nutt. OBL Oregon Woollyheads<br />

Psilocarphus tenellus Nutt. OBL Slender Woollyheads<br />

Psilotum nudum (L.) Beauv. FACW Whisk Fern<br />

Psorothamnus arborescens (Torr. ex Gray) Barneby FACU Mojave Smokebush<br />

Pteridium aquilinum (L.) Kuhn FACU Nor<strong>the</strong>rn Bracken Fern<br />

Pteris vittata L. FACW Ladder Brake<br />

Ptilagrostis kingii (Boland.) Barkworth FACU Sierran False Needle Grass<br />

Puccinellia distans (Jacq.) Parl. FACW Spreading Alkali Grass<br />

Puccinellia fasciculata (Torr.) Bickn. OBL Saltmarsh Alkali Grass<br />

Puccinellia howellii J.I. Davis OBL Howell's Alkali Grass<br />

Puccinellia lemmonii (Vasey) Scribn. FACW Lemmon's Alkali Grass<br />

Puccinellia nutkaensis (J. Presl) Fern. & Wea<strong>the</strong>rby OBL Nootka Alkali Grass<br />

Puccinellia nuttalliana (J.A. Schultes) A.S. Hitchc. FACW Nuttall's Alkali Grass<br />

Puccinellia parishii A.S. Hitchc. OBL Parish's Alkali Grass<br />

Puccinellia pumila (Vasey) A.S. Hitchc. FACW Dwarf Alkali Grass<br />

Puccinellia simplex Scribn. FACW Cali<strong>for</strong>nia Alkali Grass<br />

Pulicaria paludosa Link FAC Spanish False Fleabane<br />

Pyrola asarifolia Michx. FAC Pink Wintergreen<br />

Pyrola chlorantha Sw. FAC Green‐Flower Wintergreen<br />

Pyrola minor L. FACU Snowline Wintergreen<br />

Pyrrocoma hirta (Gray) Greene FAC Tacky Goldenweed<br />

Pyrrocoma lanceolata (Hook.) Greene FAC Lance‐Leaf Goldenweed<br />

Pyrrocoma racemosa (Nutt.) Torr. & Gray FAC Clustered Goldenweed<br />

Pyrrocoma uniflora (Hook.) Greene FACW <strong>Plant</strong>ain Goldenweed<br />

Quercus lobata Née FACU Valley Oak<br />

Quercus macrocarpa Michx. FAC Burr Oak<br />

Quercus muehlenbergii Engelm. FAC Chinkapin Oak<br />

Quercus virginiana P. Mill. FACU Live Oak<br />

Quincula lobata (Torr.) Raf. FACU Chinese‐Lantern<br />

Raillardella pringlei Greene OBL Showy Raillardella<br />

Raillardella scaposa (Gray) Gray FACU Green‐Leaf Raillardella<br />

Ranunculus abortivus L. FACW Kidney‐Leaf Buttercup<br />

Ranunculus acri<strong>for</strong>mis Gray FACW Sharp‐Leaf Buttercup<br />

Ranunculus acris L. FACW Tall Buttercup

---

Ranunculus adoneus Gray FACW Alpine Buttercup<br />

Ranunculus aestivalis (L. Benson) Van Buren & Harper FACW Fall Buttercup<br />

Ranunculus alismifolius Geyer ex Benth. FACW Water‐<strong>Plant</strong>ain Buttercup<br />

Ranunculus aquatilis L. OBL White Water‐Crowfoot<br />

Ranunculus arvensis L. FACU Hungerweed<br />

Ranunculus bonariensis Poir. OBL Carter's Buttercup<br />

Ranunculus bulbosus L. FACW St. Anthony's‐Turnip<br />

Ranunculus cali<strong>for</strong>nicus Benth. FACU Cali<strong>for</strong>nia Buttercup<br />

Ranunculus canus Benth. FAC Sacramento Valley Buttercup<br />

Ranunculus cardiophyllus Hook. FACW Heart‐Leaf Buttercup<br />

Ranunculus cymbalaria Pursh OBL Alkali Buttercup<br />

Ranunculus eschscholtzii Schlecht. FAC Spruce‐Fir Buttercup<br />

Ranunculus flabellaris Raf. OBL Greater Yellow Water Buttercup<br />

Ranunculus flammula L. OBL Greater Creeping Spearwort<br />

Ranunculus gelidus Kar. & Kir. FAC Arctic Buttercup<br />

Ranunculus glaberrimus Hook. FAC Sagebrush Buttercup<br />

Ranunculus gmelinii DC. FACW Lesser Yellow Water Buttercup<br />

Ranunculus gormanii Greene FACW Gorman's Buttercup<br />

Ranunculus hydrocharoides Gray OBL Frog‐Bit Buttercup<br />

Ranunculus hyperboreus Rottb. OBL Far‐Nor<strong>the</strong>rn Buttercup<br />

Ranunculus inamoenus Greene FACW Graceful Buttercup<br />

Ranunculus jovis A. Nels. FAC Hillside Buttercup<br />

Ranunculus lobbii (Hiern.) Gray OBL Lobb's Water‐Crowfoot<br />

Ranunculus longirostris Godr. OBL Long‐Beak Water‐Crowfoot<br />

Ranunculus macauleyi Gray FACW Rocky Mountain Buttercup<br />

Ranunculus macounii Britt. OBL Macoun's Buttercup<br />

Ranunculus muricatus L. FACW Spiny‐Fruit Buttercup<br />

Ranunculus occidentalis Nutt. FAC <strong>West</strong>ern Buttercup<br />

Ranunculus oreogenes Greene FACU Oregon Buttercup<br />

Ranunculus orthorhynchus Hook. FACW Straight‐Beak Buttercup<br />

Ranunculus parviflorus L. FAC Small‐Flower Buttercup<br />

Ranunculus pedatifidus Sm. FAC Nor<strong>the</strong>rn Buttercup<br />

Ranunculus pensylvanicus L. f. FACW Pennsylvania Buttercup<br />

Ranunculus populago Greene OBL Mountain Buttercup<br />

Ranunculus pusillus Poir. OBL Low Spearwort<br />

Ranunculus pygmaeus Wahlenb. FACW Dwarf Buttercup<br />

Ranunculus ranunculinus (Nutt.) Rydb. FACU Tadpole Buttercup<br />

Ranunculus repens L. FAC Creeping Buttercup<br />

Ranunculus sardous Crantz FACW Hairy Buttercup<br />

Ranunculus sceleratus L. OBL Cursed Buttercup<br />

Ranunculus trichophyllus Chaix OBL Thread‐Leaf Water‐Crowfoot<br />

Ranunculus trilobus Desf. FACU Three‐Lobe Buttercup<br />

Ranunculus uncinatus D. Don ex G. Don FAC Woodland Buttercup<br />

Rhamnus alnifolia L'Hér. OBL Alder‐Leaf Buckthorn<br />

Rhamnus cathartica L. FAC European Buckthorn<br />

Rhinanthus minor L. FACU Little Yellow‐Rattle<br />

Rhodiola integrifolia Raf. FACU Entire‐Leaf Rosewort

---

Rhodiola rhodantha (Gray) Jacobsen FACW Queen's‐Crown<br />

Rhododendron albiflorum Hook. FACU Cascade Azalea<br />

Rhododendron occidentale (Torr. & Gray ex Torr.) Gray FAC <strong>West</strong>ern Azalea<br />

Rhus aromatica Ait. FACU Fragrant Sumac<br />

Rhynchospora alba (L.) Vahl OBL White Beak Sedge<br />

Rhynchospora cali<strong>for</strong>nica Gale OBL Cali<strong>for</strong>nia Beak Sedge<br />

Rhynchospora capitellata (Michx.) Vahl OBL Brownish Beak Sedge<br />

Rhynchospora globularis (Chapman) Small OBL Globe Beak Sedge<br />

Ribes acerifolium T.J. Howell FACU Maple‐Leaf Currant<br />

Ribes americanum P. Mill. FACW Wild Black Currant<br />

Ribes aureum Pursh FAC Golden Currant<br />

Ribes bracteosum Dougl. ex Hook. FAC Cali<strong>for</strong>nia Black Currant<br />

Ribes divaricatum Dougl. FAC Coastal Black Gooseberry<br />

Ribes hudsonianum Richards. FACW Nor<strong>the</strong>rn Black Currant<br />

Ribes inerme Rydb. FAC White‐Stem Gooseberry<br />

Ribes lacustre (Pers.) Poir. FACW Bristly Black Gooseberry<br />

Ribes nevadense Kellogg FAC Sierran Currant<br />

Ribes oxyacanthoides L. FACU Canadian Gooseberry<br />

Ribes thacherianum (Jepson) Munz FACU Santa Cruz Gooseberry<br />

Ribes triste Pallas OBL Swamp Red Currant<br />

Ribes viscosissimum Pursh FAC Sticky Currant<br />

Ribes wolfii Rothrock FAC Winaha Currant<br />

Ricinus communis L. FACU Castor‐Bean<br />

Rivina humilis L. FAC Rougeplant<br />

Robinia pseudoacacia L. FACU Black Locust<br />

Romanzoffia cali<strong>for</strong>nica Greene FAC Cali<strong>for</strong>nia Mistmaiden<br />

Romanzoffia sitchensis Bong. FACW Sitka Mistmaiden<br />

Rorippa austriaca (Crantz) Bess. FACW Austrian Yellowcress<br />

Rorippa calycina (Engelm.) Rydb. FACW Persistent‐Sepal Yellowcress<br />

Rorippa columbiae (Suksdorf ex B.L. Robins.) Suksdorf ex T.J. H OBL Columbian Yellowcress<br />

Rorippa curvipes Greene FACW Blunt‐Leaf Yellowcress<br />

Rorippa curvisiliqua (Hook.) Bess. ex Britt. OBL Curve‐Pod Yellowcress<br />

Rorippa microtitis (B.L. Robins.) Rollins FACW Chihuahuan Yellowcress<br />

Rorippa palustris (L.) Bess. OBL Bog Yellowcress<br />

Rorippa ramosa Rollins FACW Durango Yellowcress<br />

Rorippa sinuata (Nutt.) A.S. Hitchc. FACW Spreading Yellowcress<br />

Rorippa sphaerocarpa (Gray) Britt. FACW Round‐Fruit Yellowcress<br />

Rorippa subumbellata Rollins OBL Lake Tahoe Yellowcress<br />

Rorippa sylvestris (L.) Bess. OBL Creeping Yellowcress<br />

Rorippa tenerrima Greene FAC Modoc Yellowcress<br />

Rorippa teres (Michx.) R. Stuckey FACW Sou<strong>the</strong>rn Marsh Yellowcress<br />

Rosa acicularis Lindl. FACU Prickly Rose<br />

Rosa arkansana Porter FACU Prairie Rose<br />

Rosa cali<strong>for</strong>nica Cham. & Schlecht. FAC Cali<strong>for</strong>nia Rose<br />

Rosa gymnocarpa Nutt. FACU Bald‐Hip Rose<br />

Rosa micrantha Borrer ex Sm. FACU Small‐Flower Sweetbrier<br />

Rosa multiflora Thunb. ex Murr. FACU Rambler Rose

---

Rosa nutkana K. Presl FACU Nootka Rose<br />

Rosa pisocarpa Gray FAC Clustered Rose<br />

Rosa woodsii Lindl. FACU Woods' Rose<br />

Rotala indica (Willd.) Koehne OBL Indian Toothcup<br />

Rotala ramosior (L.) Koehne OBL Lowland Toothcup<br />

Rottboellia cochinchinensis (Lour.) W.D. Clayton FAC Itch Grass<br />

Rubus allegheniensis Porter FACU Allegheny Blackberry<br />

Rubus arcticus L. FAC Nor<strong>the</strong>rn Blackberry<br />

Rubus arizonensis Focke FACU Arizona Dewberry<br />

Rubus armeniacus Focke FACU Himalayan Blackberry<br />

Rubus bartonianus M.E. Peck FACW Barton's Raspberry<br />

Rubus flagellaris Willd. FACU Whiplash Dewberry<br />

Rubus idaeus L. FACU Common Red Raspberry<br />

Rubus laciniatus Willd. FACU Cut‐Leaf Blackberry<br />

Rubus lasiococcus Gray FACU Hairy‐Fruit Smooth Dewberry<br />

Rubus leucodermis Dougl. ex Torr. & Gray FACU White‐Stem Raspberry<br />

Rubus parviflorus Nutt. FAC <strong>West</strong>ern Thimble‐Berry<br />

Rubus pedatus Sm. FACU Strawberry‐Leaf Raspberry<br />

Rubus pubescens Raf. FAC Dwarf Red Raspberry<br />

Rubus spectabilis Pursh FAC Salmon Raspberry<br />

Rubus ursinus Cham. & Schlecht. FACU Cali<strong>for</strong>nia Dewberry<br />

Rubus vitifolius Cham. & Schlecht. FAC Pacific Dewberry<br />

Rudbeckia alpicola Piper FACW Showy Coneflower<br />

Rudbeckia cali<strong>for</strong>nica Gray FACW Cali<strong>for</strong>nia Coneflower<br />

Rudbeckia glaucescens Eastw. FACW Waxy Coneflower<br />

Rudbeckia hirta L. FACU Black‐Eyed‐Susan<br />

Rudbeckia klama<strong>the</strong>nsis P. Cox & Urbatsch FACW Klamath Coneflower<br />

Rudbeckia laciniata L. FAC Green‐Head Coneflower<br />

Rudbeckia montana Gray FACW Montane Coneflower<br />

Rudbeckia occidentalis Nutt. FAC <strong>West</strong>ern Coneflower<br />

Rudbeckia triloba L. FACU Brown‐Eyed‐Susan<br />

Rumex acetosa L. FAC Garden Sorrel<br />

Rumex acetosella L. FACU Common Sheep Sorrel<br />

Rumex altissimus Wood FACW Pale Dock<br />

Rumex britannica L. OBL Greater Water Dock<br />

Rumex cali<strong>for</strong>nicus Rech. f. FACW Cali<strong>for</strong>nia Willow Dock<br />

Rumex conglomeratus Murr. FACW Sharp Dock<br />

Rumex crassus Rech. f. FACW Fleshy Willow Dock<br />

Rumex crispus L. FAC Curly Dock<br />

Rumex densiflorus Osterhout FACW Dense‐Flower Dock<br />

Rumex dentatus L. FACW Too<strong>the</strong>d Dock<br />

Rumex fueginus Phil. FACW Tierra del Fuego Dock<br />

Rumex hastatulus Baldw. FAC Heart‐Wing Sorrel<br />

Rumex kerneri Borbás FACW Kerner's Dock<br />

Rumex lacustris Greene OBL Lake Willow Dock<br />

Rumex mexicanus Meisn. FAC Mexican Dock<br />

Rumex obtusifolius L. FAC Bitter Dock

---

Rumex occidentalis S. Wats. FACW <strong>West</strong>ern Dock<br />

Rumex paucifolius Nutt. FAC Alpine Sheep Sorrel<br />

Rumex persicarioides L. FACW Coastal Dock<br />

Rumex pulcher L. FAC Fiddle Dock<br />

Rumex salicifolius Weinm. FACW Willow Dock<br />

Rumex spiralis Small FAC Winged Dock<br />

Rumex stenophyllus Ledeb. FACW Narrow‐Leaf Dock<br />

Rumex tomentellus Rech. f. OBL Mogollon Dock<br />

Rumex transitorius Rech. f. FACW Pacific Willow Dock<br />

Rumex triangulivalvis (Danser) Rech. f. FACW Triangular‐Valved Dock<br />

Rumex verticillatus L. FACW Swamp Dock<br />

Rumex violascens Rech. f. FACW Violet Dock<br />

Ruppia cirrhosa (Petag.) Grande OBL Spiral Ditch‐Grass<br />

Ruppia maritima L. OBL Beaked Ditch‐Grass<br />

Sabatia angularis (L.) Pursh FAC Rose‐Pink<br />

Saccharum ravennae (L.) L. FAC Ranenna Grass<br />

Sagina apetala Ard. FAC Annual Pearlwort<br />

Sagina decumbens (Ell.) Torr. & Gray FACU Trailing Pearlwort<br />

Sagina maxima Gray FAC Sticky‐Stem Pearlwort<br />

Sagina procumbens L. FAC Bird‐Eye Pearlwort<br />

Sagina saginoides (L.) Karst. FACW Alpine Pearlwort<br />

Sagittaria brevirostra Mackenzie & Bush OBL Short‐Beak Arrowhead<br />

Sagittaria calycina Engelm. OBL Hooded Arrowhead<br />

Sagittaria cuneata Sheldon OBL Arum‐Leaf Arrowhead<br />

Sagittaria latifolia Willd. OBL Duck‐Potato<br />

Sagittaria longiloba Engelm. ex J.G. Sm. OBL Long‐Barb Arrowhead<br />

Sagittaria rigida Pursh OBL Sessile‐Fruit Arrowhead<br />

Sagittaria san<strong>for</strong>dii Greene OBL Valley Arrowhead<br />

Salicornia bigelovii Torr. OBL Dwarf Saltwort<br />

Salicornia depressa Standl. OBL Woody Saltwort<br />

Salicornia rubra A. Nels. OBL Red Saltwort<br />

Salix alba L. FACW White Willow<br />

Salix amygdaloides Anderss. FACW Peach‐Leaf Willow<br />

Salix arctica Pallas FAC Arctic Willow<br />

Salix arizonica Dorn OBL Arizona Willow<br />

Salix babylonica auct. non L. FACW<br />

Salix barclayi Anderss. FACW Barclay's Willow<br />

Salix barrattiana Hook. FACW Barratt's Willow<br />

Salix bebbiana Sarg. FACW Gray Willow<br />

Salix bonplandiana Kunth FACW Red Willow<br />

Salix boothii Dorn FACW Booth's Willow<br />

Salix brachycarpa Nutt. FACW Short‐Fruit Willow<br />

Salix breweri Bebb FAC Brewer's Willow<br />

Salix candida Flueggé ex Willd. OBL Sage Willow<br />

Salix cascadensis Cockerell FACU Cascade Willow<br />

Salix columbiana (Dorn) Argus FACW<br />

Salix commutata Bebb OBL Under‐Green Willow

---

Salix delnortensis Schneid. FAC Del Norte Willow<br />

Salix discolor Muhl. FACW Pussy Willow<br />

Salix drummondiana Barratt ex Hook. FACW Drummond's Willow<br />

Salix eastwoodiae Cockerell ex Heller FACW Sierran Willow<br />

Salix eriocephala Michx. OBL Missouri Willow<br />

Salix exigua Nutt. FACW Narrow‐Leaf Willow<br />

Salix famelica (Ball) Argus FACW<br />

Salix farriae Ball OBL Farr's Willow<br />

Salix fragilis L. FAC Crack Willow<br />

Salix geyeriana Anderss. OBL Geyer's Willow<br />

Salix glauca L. FACW Gray‐Leaf Willow<br />

Salix gooddingii Ball FACW Goodding's Black Willow<br />

Salix hookeriana Barratt ex Hook. FACW Coastal Willow<br />

Salix interior Rowlee FACW Sandbar Willow<br />

Salix irrorata Anderss. FACW Dewy‐Stem Willow<br />

Salix jepsonii Schneid. OBL Jepson's Willow<br />

Salix laevigata Bebb FACW Polished Willow<br />

Salix lasiandra Benth. FACW<br />

Salix lasiolepis Benth. FACW Arroyo Willow<br />

Salix lemmonii Bebb FACW Lemmon's Willow<br />

Salix ligulifolia (Ball) Ball ex Schneid. FACW Strap‐Leaf Willow<br />

Salix lutea Nutt. OBL Yellow Willow<br />

Salix maccalliana Rowlee FACW Mccalla's Willow<br />

Salix matsudana Koidzumi FAC Corkscrew Willow<br />

Salix melanopsis Nutt. OBL Dusky Willow<br />

Salix monochroma Ball FACW One‐Color Willow<br />

Salix monticola Bebb OBL Park Willow<br />

Salix myrtillifolia Anderss. FACW Blueberry Willow<br />

Salix nivalis Hook. FACW Snow Willow<br />

Salix orestera Schneid. FACW Gray‐Leaf Sierran Willow<br />

Salix pedicellaris Pursh OBL Bog Willow<br />

Salix planifolia Pursh OBL Tea‐Leaf Willow<br />

Salix prolixa Anderss. OBL Mackenzie's Willow<br />

Salix pseudomonticola Ball FACW False Mountain Willow<br />

Salix purpurea L. FACW Purple Willow<br />

Salix reticulata L. FAC Net‐Vein Willow<br />

Salix rotundifolia Trautv. FACW Round‐Leaf Willow<br />

Salix scouleriana Barratt ex Hook. FAC Scouler's Willow<br />

Salix serissima (Bailey) Fern. OBL Autumn Willow<br />

Salix sitchensis Sanson ex Bong. FACW Sitka Willow<br />

Salix taxifolia Kunth FACW Yew‐Leaf Willow<br />

Salix thurberi Rowlee FAC<br />

Salix tracyi Ball FACW Tracy's Willow<br />

Salix tweedyi (Bebb ex Rose) Ball FACW Tweedy's Willow<br />

Salix vestita Pursh FAC Rock Willow<br />

Salix viminalis L. FACW Basket Willow<br />

Salix wolfii Bebb OBL Idaho Willow

---

Salix X pendulina Wenderoth FACW<br />

Salix X sepulcralis Simonkai FACW<br />

Salsola soda L. FACW Opposite‐Leaf Russian‐Thistle<br />

Salsola tragus L. FACU Prickly Russian‐Thistle<br />

Salvia lycioides Gray FACU Canyon Sage<br />

Salvinia minima Baker OBL Water‐Spangles<br />

Salvinia molesta Mitchell OBL Kariba‐Weed<br />

Sambucus nigra L. FAC Black Elder<br />

Sambucus racemosa L. FACU Red Elder<br />

Samolus ebracteatus Kunth FACW Limewater Brookweed<br />

Samolus vagans Greene OBL Chiricahua Mountain Brookweed<br />

Samolus valerandi L. OBL Seaside Brookweed<br />

Sanguisorba canadensis L. FACW Canadian Burnet<br />

Sanguisorba minor Scop. FACU Salad Burnet<br />

Sanguisorba officinalis L. FACW Great Burnet<br />

Sanicula marilandica L. FAC Maryland Black‐Snakeroot<br />

Sanicula maritima Kellogg ex S. Wats. FACW Adobe Black‐Snakeroot<br />

Sapindus saponaria L. FACU Wing‐Leaf Soapberry<br />

Saponaria officinalis L. FACU Bouncing‐Bett<br />

Sarcobatus vermiculatus (Hook.) Torr. FAC Greasewood<br />

Sarcocornia ambigua (Michx.) M.A.Alonso & M.B.Crespo OBL Chickenclaws<br />

Sarcocornia pacifica (Standl.) A.J. Scott OBL Pacific Swampfire<br />

Sarcocornia utahensis (Tidestrom) A.J. Scott OBL Utah Swampfire<br />

Sarracenia purpurea L. OBL Purple Pitcherplant<br />

Sarracenia rubra Walt. OBL Sweet Pitcherplant<br />

Saussurea americana D.C. Eat. FACW American Saw‐Wort<br />

Saxifraga adscendens L. FACW Wedge‐Leaf Saxifrage<br />

Saxifraga aprica Greene FACW Sierran Saxifrage<br />

Saxifraga bronchialis L. FACU Yellow‐Spot Saxifrage<br />

Saxifraga caespitosa L. FAC Tufted Alpine Saxifrage<br />

Saxifraga cali<strong>for</strong>nica Greene FACW Cali<strong>for</strong>nia Saxifrage<br />

Saxifraga cernua L. FACW Nodding Saxifrage<br />

Saxifraga chrysantha Gray FACU Golden Saxifrage<br />

Saxifraga ferruginea Graham FAC Russet‐Hair Saxifrage<br />

Saxifraga hirculus L. OBL Yellow Marsh Saxifrage<br />

Saxifraga howellii Greene FAC Howell's Saxifrage<br />

Saxifraga integrifolia Hook. FACW Columbian Saxifrage<br />

Saxifraga lyallii Engl. FACW Red‐Stem Saxifrage<br />

Saxifraga marshallii Greene OBL Hupa Valley Saxifrage<br />

Saxifraga mertensiana Bong. FACW Woodland Saxifrage<br />

Saxifraga nelsoniana D. Don FAC Heart‐Leaf Saxifrage<br />

Saxifraga nidifica Greene FACW Peak Saxifrage<br />

Saxifraga occidentalis S. Wats. FAC Mountain Saxifrage<br />

Saxifraga odontoloma Piper FACW Streambank Saxifrage<br />

Saxifraga oppositifolia L. FACU Purple Mountain Saxifrage<br />

Saxifraga oregana T.J. Howell OBL Bog Saxifrage<br />

Saxifraga rhomboidea Greene FACW Diamond‐Leaf Saxifrage

---

Saxifraga rivularis L. FACW Alpine‐Brook Saxifrage<br />

Saxifraga tolmiei Torr. & Gray FAC Tolmie's Alpine Saxifrage<br />

Sceptridium multifidum (Gmel.) Nishida ex Tagawa FAC Lea<strong>the</strong>ry Grape Fern<br />

Scheuchzeria palustris L. OBL Rannoch‐Rush<br />

Schinus terebinthifolius Raddi FAC Brazilian Peppertree<br />

Schizachne purpurascens (Torr.) Swallen FACU False Melic Grass<br />

Schizachyrium littorale (Nash) Bickn. FACU Dune False Bluestem<br />

Schizachyrium scoparium (Michx.) Nash FACU Little False Bluestem<br />

Schoenoplectus acutus (Muhl. ex Bigelow) A.& D. Löve OBL Hard‐Stem Club‐Rush<br />

Schoenoplectus americanus (Pers.) Volk. ex Schinz & R. Keller OBL Chairmaker's Club‐Rush<br />

Schoenoplectus cali<strong>for</strong>nicus (C.A. Mey.) Palla OBL Cali<strong>for</strong>nia Club‐Rush<br />

Schoenoplectus fluviatilis (Torr.) M.T. Strong OBL River Club‐Rush<br />

Schoenoplectus glaucus (Lam.) Kartesz OBL Tuberous Club‐Rush<br />

Schoenoplectus heterochaetus (Chase) Soják OBL Pale Great Club‐Rush<br />

Schoenoplectus maritimus (L.) Lye OBL Saltmarsh Club‐Rush<br />

Schoenoplectus mucronatus (L.) Palla OBL Bog Club‐Rush<br />

Schoenoplectus pungens (Vahl) Palla OBL Three‐Square<br />

Schoenoplectus robustus (Pursh) M.T. Strong OBL Seaside Club‐Rush<br />

Schoenoplectus saximontanus (Fern.) Raynal OBL Rocky Mountain Club‐Rush<br />

Schoenoplectus subterminalis (Torr.) Soják OBL Swaying Club‐Rush<br />

Schoenoplectus tabernaemontani (K.C. Gmel.) Palla OBL Soft‐Stem Club‐Rush<br />

Schoenus nigricans L. OBL Black Bog‐Rush<br />

Scirpus congdonii Britt. FACW Congdon's Bulrush<br />

Scirpus cyperinus (L.) Kunth OBL Cottongrass Bulrush<br />

Scirpus diffusus Schuyler FACW Umbrella Bulrush<br />

Scirpus microcarpus J.& K. Presl OBL Red‐Tinge Bulrush<br />

Scirpus nevadensis S. Wats. OBL Nevada Bulrush<br />

Scirpus pallidus (Britt.) Fern. OBL Pale Bulrush<br />

Scirpus pendulus Muhl. OBL Rufous Bulrush<br />

Scleranthus annuus L. FACU Annual Knawel<br />

Sclerolinon digynum (Gray) Rogers FACW Northwestern Yellow‐Flax<br />

Scolochloa festucacea (Willd.) Link OBL Common River Grass<br />

Scrophularia atrata Pennell FACU Black‐Flower Figwort<br />

Scrophularia cali<strong>for</strong>nica Cham. & Schlecht. FAC Cali<strong>for</strong>nia Figwort<br />

Scrophularia lanceolata Pursh FAC Lance‐Leaf Figwort<br />

Scutellaria bolanderi Gray FACW Sierran Skullcap<br />

Scutellaria galericulata L. OBL Hooded Skullcap<br />

Scutellaria lateriflora L. FACW Mad Dog Skullcap<br />

Scutellaria siphocampyloides Vatke FACU Gray‐Leaf Skullcap<br />

Sedella congdonii (Eastw.) Britt. & Rose FACU Congdon's Mock Stonecrop<br />

Sedella leiocarpa H.K. Sharsmith FAC Lake County Mock Stonecrop<br />

Sedella pumila (Benth.) Britt. & Rose FAC Sierran Mock Stonecrop<br />

Selaginella kraussiana (Kunze) A. Braun FACW Krauss' Spike‐Moss<br />

Selaginella selaginoides (L.) Beauv. ex Mart. & Schrank FACW Nor<strong>the</strong>rn Spike‐Moss<br />

Selenia dissecta Torr. & Gray FACW Texas Selenia<br />

Selenia jonesii Cory FACW Jones' Selenia<br />

Senecio amplectens Gray FACW Showy Alpine Ragwort

---

Senecio clarkianus Gray FACW Clark's Ragwort<br />

Senecio crassulus Gray FACU Thick‐Leaf Ragwort<br />

Senecio eremophilus Richards. FACU Desert Ragwort<br />

Senecio hydrophiloides Rydb. FACW Stout Meadow Ragwort<br />

Senecio hydrophilus Nutt. OBL Alkali‐Marsh Ragwort<br />

Senecio integerrimus Nutt. FACU Lamb‐Tongue Ragwort<br />

Senecio jacobaea L. FACU Tansy Ragwort<br />

Senecio lugens Richards. FAC Small Black‐Tip Ragwort<br />

Senecio scorzonella Greene FAC Sierran Ragwort<br />

Senecio serra Hook. FACU Tall Ragwort<br />

Senecio sphaerocephalus Greene FACW Mountain‐Marsh Ragwort<br />

Senecio triangularis Hook. FACW Arrow‐Leaf Ragwort<br />

Senecio vulgaris L. FACU Old‐Man‐in‐<strong>the</strong>‐Spring<br />

Senna alata (L.) Roxb. FACU Emperor's‐Candlesticks<br />

Senna hirsuta (L.) Irwin & Barneby FACU Woolly Wild Sensitive‐<strong>Plant</strong><br />

Senna pendula (Humb. & Bonpl. ex Willd.) Irwin & Barneb FAC Valamuerto<br />

Sesbania emerus (Aubl.) Urban FAC Danglepod<br />

Sesbania exaltata (Raf.) Rydb. ex A.W. Hill FACW Peatree<br />

Sesbania punicea (Cav.) Benth. FACW Purple River‐Hemp<br />

Sesuvium maritimum (Walt.) B.S.P. FACW Slender Sea‐Purslane<br />

Sesuvium portulacastrum (L.) L. FACW Shoreline Sea‐Purslane<br />

Sesuvium verrucosum Raf. FACW Verrucose Sea‐Purslane<br />

Setaria adhaerens (Forssk.) Chiov. FACU Adherent Bristle Grass<br />

Setaria italica (L.) Beauv. FACU Italian Bristle Grass<br />

Setaria magna Griseb. FACW Giant Bristle Grass<br />

Setaria parviflora (Poir.) Kerguélen FAC Marsh Bristle Grass<br />

Setaria pumila (Poir.) Roemer & J.A. Schultes FAC Yellow Bristle Grass<br />

Setaria sphacelata (Schumacher) Moss ex Stapf & C.E. Hubbar OBL African Bristle Grass<br />

Setaria verticillata (L.) Beauv. FACU Rough Bristle Grass<br />

Setaria verticilli<strong>for</strong>mis Dumort. FAC Foreward‐Barb Bristle Grass<br />

Shepherdia argentea (Pursh) Nutt. FACU Silver Buffalo‐Berry<br />

Sibara virginica (L.) Rollins FAC Virginia Winged‐Rockcress<br />

Sibbaldia procumbens L. FACU Creeping‐Glow‐Wort<br />

Sida rhombifolia L. FACU Cuban‐Jute<br />

Sidalcea calycosa M.E. Jones OBL Annual Checker‐Mallow<br />

Sidalcea candida Gray FACW White Checker‐Mallow<br />

Sidalcea covillei Greene FACU Owens Valley Checker‐Mallow<br />

Sidalcea cusickii Piper FACW Cusick's Checker‐Mallow<br />

Sidalcea hirsuta Gray ex Benth. OBL Hairy Checker‐Mallow<br />

Sidalcea malviflora (DC.) Gray ex Benth. FACW Dwarf Checker‐Mallow<br />

Sidalcea neomexicana Gray FACW Rocky Mountain Checker‐Mallow<br />

Sidalcea oregana (Nutt. ex Torr. & Gray) Gray FACW Oregon Checker‐Mallow<br />

Sidalcea pedata Gray OBL Mountain Checker‐Mallow<br />

Sidalcea ranunculacea Greene OBL Marsh Checker‐Mallow<br />

Sidalcea reptans Greene OBL Sierran Checker‐Mallow<br />

Sidalcea stipularis J.T. Howell & True OBL Scadden Flat Checker‐Mallow<br />

Sideroxylon lanuginosum Michx. FACU Gum Bully

---

Silene hitchguirei Bocquet OBL Mountain Catchfly<br />

Silene menziesii Hook. FAC White Catchfly<br />

Silene uralensis (Rupr.) Bocquet FACW Apetalous Catchfly<br />

Sisymbrium altissimum L. FACU Tall Hedge‐Mustard<br />

Sisyrinchium bellum S. Wats. FACW Cali<strong>for</strong>nia Blue‐Eyed‐Grass<br />

Sisyrinchium cali<strong>for</strong>nicum (Ker‐Gawl.) Dry. FACW Golden Blue‐Eyed‐Grass<br />

Sisyrinchium cernuum (Bickn.) Kearney FAC Nodding Blue‐Eyed‐Grass<br />

Sisyrinchium demissum Greene OBL Stiff Blue‐Eyed‐Grass<br />

Sisyrinchium elmeri Greene OBL Elmer's Blue‐Eyed‐Grass<br />

Sisyrinchium funereum Bickn. FACW Funeral Mountain Blue‐Eyed‐Grass<br />

Sisyrinchium halophilum Greene FACW Nevada Blue‐Eyed‐Grass<br />

Sisyrinchium idahoense Bickn. FACW Idaho Blue‐Eyed‐Grass<br />

Sisyrinchium longipes (Bickn.) Kearney & Peebles FACW Timberland Blue‐Eyed‐Grass<br />

Sisyrinchium minus Engelm. & Gray FACU Dwarf Blue‐Eyed‐Grass<br />

Sisyrinchium montanum Greene FACW Strict Blue‐Eyed‐Grass<br />

Sisyrinchium sarmentosum Suksdorf ex Greene OBL Mountain Blue‐Eyed‐Grass<br />

Sisyrinchium septentrionale Bickn. FACW Nor<strong>the</strong>rn Blue‐Eyed‐Grass<br />

Sium suave Walt. OBL Hemlock Water‐Parsnip<br />

Smilax jamesii G. Wallace FACW English Peak Greenbrier<br />

Solanum americanum P. Mill. FACU American Black Nightshade<br />

Solanum carolinense L. FACU Carolina Horse‐Nettle<br />

Solanum douglasii Dunal FAC Green‐Spot Nightshade<br />

Solanum dulcamara L. FAC Climbing Nightshade<br />

Solanum erianthum D. Don FAC Potato‐Tree<br />

Solanum nigrum L. FACU European Black Nightshade<br />

Solanum ptycanthum Dunal FACU Eastern Black Nightshade<br />

Solidago altissima L. FACU Tall Goldenrod<br />

Solidago confinis Gray OBL Sou<strong>the</strong>rn Goldenrod<br />

Solidago elongata Nutt. FACU Cascade Canada Goldenrod<br />

Solidago gigantea Ait. FACW Late Goldenrod<br />

Solidago lepida DC. FAC <strong>West</strong>ern Canada Goldenrod<br />

Solidago multiradiata Ait. FACU Rocky Mountain Goldenrod<br />

Solidago simplex Kunth FACU Mt. Albert Goldenrod<br />

Solidago spathulata DC. FACU Coast Goldenrod<br />

Solidago spectabilis (D.C. Eat.) Gray FACW Nevada Goldenrod<br />

Soliva sessilis Ruiz & Pavón FACU Lawn Burrweed<br />

Sonchus arvensis L. FACU Field Sow‐Thistle<br />

Sonchus asper (L.) Hill FAC Spiny‐Leaf Sow‐Thistle<br />

Sorbus scopulina Greene FACU Cascade Mountain‐Ash<br />

Sorbus sitchensis M. Roemer FAC Sitka Mountain‐Ash<br />

Sorghastrum nutans (L.) Nash FACU Yellow Indian Grass<br />

Sorghum bicolor (L.) Moench FACU Broom‐Corn<br />

Sorghum halepense (L.) Pers. FACU Johnson Grass<br />

Sparganium angustifolium Michx. OBL Narrow‐Leaf Burr‐Reed<br />

Sparganium emersum Rehmann OBL European Burr‐Reed<br />

Sparganium erectum L. OBL Simple‐Stem Burr‐Reed<br />

Sparganium eurycarpum Engelm. ex Gray OBL Broad‐Fruit Burr‐Reed

---

Sparganium fluctuans (Engelm. ex Morong) B.L. Robins. OBL Floating Burr‐Reed<br />

Sparganium natans L. OBL Arctic Burr‐Reed<br />

Spartina alterniflora Loisel. OBL Saltwater Cord Grass<br />

Spartina densiflora Brongn. OBL Dense‐Flower Cord Grass<br />

Spartina foliosa Trin. OBL Cali<strong>for</strong>nia Cord Grass<br />

Spartina gracilis Trin. FACW Alkali Cord Grass<br />

Spartina patens (Ait.) Muhl. OBL Salt‐Meadow Cord Grass<br />

Spartina pectinata Bosc ex Link OBL Freshwater Cord Grass<br />

Spergularia atrosperma R.P. Rossb. FACW Black‐Seed Sandspurry<br />

Spergularia bocconi (Scheele) Graebn. FACW Boccone's Sandspurry<br />

Spergularia canadensis (Pers.) G. Don FACW Canadian Sandspurry<br />

Spergularia diandra (Guss.) Held. FACW Alkali Sandspurry<br />

Spergularia macro<strong>the</strong>ca (Hornem. ex Cham. & Schlecht.) Heynh. FAC Sticky Sandspurry<br />

Spergularia maritima (All.) Chiov. FACW Satin‐Flower<br />

Spergularia platensis (Camb.) Fenzl OBL La Plata Sandspurry<br />

Spergularia rubra (L.) J.& K. Presl FAC Ruby Sandspurry<br />

Spergularia salina J.& K. Presl OBL Saltmarsh Sandspurry<br />

Spermolepis divaricata (Walt.) Raf. ex Ser. FACW Rough‐Fruit Scaleseed<br />

Spermolepis echinata (Nutt. ex DC.) Heller FACU Bristly‐Fruit Scaleseed<br />

Sphaerophysa salsula (Pallas) DC. FACU Red Bladder‐Vetch<br />

Sphenopholis obtusata (Michx.) Scribn. FAC Prairie Wedgescale<br />

Sphenosciadium capitellatum Gray FACW Swamp Whiteheads<br />

Spinulum annotinum (L.) Haines FAC<br />

Spiraea betulifolia Pallas FACU Shiny‐Leaf Meadowsweet<br />

Spiraea douglasii Hook. FACW Douglas' Meadowsweet<br />

Spiraea X hitchcockii Hess & Stoynoff FAC<br />

Spiran<strong>the</strong>s delitescens Sheviak OBL Madrean Ladies'‐Tresses<br />

Spiran<strong>the</strong>s diluvialis Sheviak FACW Diluvim Ladies'‐Tresses<br />

Spiran<strong>the</strong>s infernalis Sheviak FACW Ash Meadows Ladies'‐Tresses<br />

Spiran<strong>the</strong>s magnicamporum Sheviak FAC Great Plains Ladies'‐Tresses<br />

Spiran<strong>the</strong>s porrifolia Lindl. FACW <strong>West</strong>ern Ladies'‐Tresses<br />

Spiran<strong>the</strong>s romanzoffiana Cham. FACW Hooded Ladies'‐Tresses<br />

Spirodela polyrrhiza (L.) Schleid. OBL Common Duckmeat<br />

Sporobolus airoides (Torr.) Torr. FAC Alkali‐Sacaton<br />

Sporobolus cryptandrus (Torr.) Gray FACU Sand Dropseed<br />

Sporobolus flexuosus (Thurb. ex Vasey) Rydb. FACU Mesa Dropseed<br />

Sporobolus giganteus Nash FACU Giant Dropseed<br />

Sporobolus indicus (L.) R. Br. FACU Smut Grass<br />

Sporobolus pyramidatus (Lam.) A.S. Hitchc. FACU Target Dropseed<br />

Sporobolus texanus Vasey FACW Texas Dropseed<br />

Stachys ajugoides Benth. OBL Bugle Hedge‐Nettle<br />

Stachys albens Gray OBL White‐Stem Hedge‐Nettle<br />

Stachys chamissonis Benth. OBL Coastal Hedge‐Nettle<br />

Stachys coccinea Ortega FAC Scarlet Hedge‐Nettle<br />

Stachys crenata Raf. FAC Mouse's‐Ear<br />

Stachys floridana Shuttlw. ex Benth. FAC Florida Hedge‐Nettle<br />

Stachys mexicana Benth. FACW Mexican Hedge‐Nettle

---

Stachys pilosa Nutt. FACW Hairy Hedge‐Nettle<br />

Stachys pycnantha Benth. FACW Short‐Spike Hedge‐Nettle<br />

Stachys rigida Nutt. ex Benth. FACW Rough Hedge‐Nettle<br />

Stachys stricta Greene OBL Sonoma Hedge‐Nettle<br />

Steinchisma hians (Ell.) Nash FACW Gaping Grass<br />

Stellaria borealis Bigelow FACW Boreal Starwort<br />

Stellaria calycantha (Ledeb.) Bong. FACW Nor<strong>the</strong>rn Bog Starwort<br />

Stellaria crassifolia Ehrh. FACW Fleshy Starwort<br />

Stellaria crispa Cham. & Schlecht. FAC Ruffled Starwort<br />

Stellaria cuspidata Willd. ex Schlecht. FAC Mexican Starwort<br />

Stellaria graminea L. FAC Grass‐Leaf Starwort<br />

Stellaria humifusa Rottb. OBL Saltmarsh Starwort<br />

Stellaria littoralis Torr. OBL Beach Starwort<br />

Stellaria longifolia Muhl. ex Willd. FACW Long‐Leaf Starwort<br />

Stellaria longipes Goldie FACW Long‐Stalk Starwort<br />

Stellaria media (L.) Vill. FACU Common Chickweed<br />

Stellaria obtusa Engelm. FACW Rocky Mountain Starwort<br />

Stellaria umbellata Turcz. ex Kar. & Kir. FACW Umbrella Starwort<br />

Stemodia durantifolia (L.) Sw. OBL White‐Woolly Twintip<br />

Stenotaphrum secundatum (Walt.) Kuntze FAC St. Augustine Grass<br />

Streptopus amplexifolius (L.) DC. FAC Clasping Twistedstalk<br />

Streptopus lanceolatus (Ait.) Reveal FAC Lance‐Leaf Twistedstalk<br />

Strophostyles helvola (L.) Ell. FACU Trailing Fuzzy‐Bean<br />

Stuckenia fili<strong>for</strong>mis (Pers.) Börner OBL Slender‐Leaf False Pondweed<br />

Stuckenia pectinata (L.) Böerner OBL Sago False Pondweed<br />

Stuckenia striata (Ruiz & Pavón) Holub OBL Striped False Pondweed<br />

Stuckenia vaginata (Turcz.) Holub OBL Shea<strong>the</strong>d False Pondweed<br />

Styrax platanifolius Engelm. FAC Sycamore‐Leaf Snowbell<br />

Suaeda calceoli<strong>for</strong>mis (Hook.) Moq. FACW Paiuteweed<br />

Suaeda cali<strong>for</strong>nica S. Wats. FACW Broom Seepweed<br />

Suaeda esteroa Ferren & Whitmore FACW Seablite<br />

Suaeda mexicana (Standl.) Standl. FACW Mexican Seepweed<br />

Suaeda nigra (Raf.) J.F. Macbr. OBL Shrubby Seepweed<br />

Suaeda occidentalis (S. Wats.) S. Wats. FACW <strong>West</strong>ern Seepweed<br />

Suaeda taxifolia (Standl.) Standl. FACW Needle‐Leaf Seepweed<br />

Subularia aquatica L. OBL American Water‐Awlwort<br />

Suckleya suckleyana (Torr.) Rydb. FACW Poison Suckleya<br />

Suksdorfia ranunculifolia (Hook.) Engl. FAC Buttercup‐Leaf Mock Brookfoam<br />

Suksdorfia violacea Gray FAC Violet Mock Brookfoam<br />

Sullivantia hapemanii (Coult. & Fisher) Coult. FACW Hapeman's Coolwort<br />

Swertia perennis L. FACW Felwort<br />

Symphoricarpos albus (L.) Blake FACU Common Snowberry<br />

Symphoricarpos occidentalis Hook. FAC <strong>West</strong>ern Snowberry<br />

Symphyotrichum ascendens (Lindl.) Nesom FAC <strong>West</strong>ern American‐Aster<br />

Symphyotrichum boreale (Torr. & Gray) A.& D. Löve OBL Boreal American‐Aster<br />

Symphyotrichum chilense (Nees) Nesom FAC Pacific American‐Aster<br />

Symphyotrichum ciliatum (Ledeb.) Nesom FACW Alkali American‐Aster

---

Symphyotrichum defoliatum (Parish) Nesom OBL San Bernardino American‐Aster<br />

Symphyotrichum eatonii (Gray) Nesom FAC Bracted American‐Aster<br />

Symphyotrichum ericoides (L.) Nesom FAC White Heath American‐Aster<br />

Symphyotrichum falcatum (Lindl.) Nesom FACU Rough White Prairie American‐Aster<br />

Symphyotrichum frondosum (Nutt.) Nesom FACW Leafy American‐Aster<br />

Symphyotrichum laeve (L.) A.& D. Löve FACU Smooth Blue American‐Aster<br />

Symphyotrichum lanceolatum (Willd.) Nesom OBL White Panicled American‐Aster<br />

Symphyotrichum lentum (Greene) Nesom OBL Suisun Marsh American‐Aster<br />

Symphyotrichum novae‐angliae (L.) Nesom FACW New England American‐Aster<br />

Symphyotrichum pilosum (Willd.) Nesom FACU White Oldfield American‐Aster<br />

Symphyotrichum porteri (Gray) Nesom FACU Smooth White American‐Aster<br />

Symphyotrichum praealtum (Poir.) Nesom OBL Willow‐Leaf American‐Aster<br />

Symphyotrichum spathulatum (Lindl.) Nesom FAC Mountain American‐Aster<br />

Symphyotrichum squamatum (Spreng.) Nesom OBL<br />

Symphyotrichum subspicatum (Nees) Nesom FACW Leafy‐Bract American‐Aster<br />

Symphyotrichum subulatum (Michx.) Nesom OBL Seaside American‐Aster<br />

Symphytum asperum Lepechin FACW Prickly Comfrey<br />

Synthyris ranunculina Pennell OBL Charleston Mountain Kitten's‐Tail<br />

Tamarix aphylla (L.) Karst. FAC A<strong>the</strong>l Tamarisk<br />

Tamarix chinensis Lour. FAC Five‐Stamen Tamarisk<br />

Tamarix gallica L. FACW French Tamarisk<br />

Tamarix parviflora DC. FAC Small‐Flower Tamarisk<br />

Tanacetum vulgare L. FACU Common Tansy<br />

Taraxacum cali<strong>for</strong>nicum Munz & Johnston FACW Cali<strong>for</strong>nia Dandelion<br />

Taraxacum officinale G.H. Weber ex Wiggers FACU Common Dandelion<br />

Tauschia tenuissima (Geyer ex Hook.) Mathias & Constance FACW Leiberg's Umbrella‐Wort<br />

Taxodium distichum (L.) L.C. Rich. OBL Sou<strong>the</strong>rn Bald‐Cypress<br />

Taxus brevifolia Nutt. FACU Pacific Yew<br />

Tellima grandiflora (Pursh) Dougl. ex Lindl. FACU Fragrant Fringecup<br />

Teucrium canadense L. FACW American Germander<br />

Teucrium chamaedrys L. FACU Wall Germander<br />

Teucrium cubense Jacq. FACW Small Coastal Germander<br />

Thalictrum alpinum L. FACW Alpine Meadow‐Rue<br />

Thalictrum dasycarpum Fisch. & Avé‐Lall. FACW Purple Meadow‐Rue<br />

Thalictrum fendleri Engelm. ex Gray FAC Fendler's Meadow‐Rue<br />

Thalictrum occidentale Gray FACU <strong>West</strong>ern Meadow‐Rue<br />

Thalictrum revolutum DC. FACU Waxy‐Leaf Meadow‐Rue<br />

Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey. FAC Few‐Flower Meadow‐Rue<br />

Thalictrum venulosum Trel. FACU Veiny‐Leaf Meadow‐Rue<br />

Thelypodium crispum Greene ex Payson FACU Crisped Thelypody<br />

Thelypodium integrifolium (Nutt.) Endl. ex Walp. FACW Entire‐Leaf Thelypody<br />

Thelypodium sagittatum (Nutt. ex Torr. & Gray) Endl. ex Walp. FACW Arrowhead Thelypody<br />

Thelypodium stenopetalum S. Wats. FAC Slender‐Petal Thelypody<br />

Thelypteris ovata R. St. John FACW Ovate Marsh Fern<br />

Thelypteris puberula (Baker) Morton FACW Showy Maiden Fern<br />

Thermopsis divaricarpa A. Nels. FAC Spread‐Fruit Golden‐Banner<br />

Thermopsis montana Nutt. FAC Montane Golden‐Banner

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Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richards. FACU Prairie Golden‐Banner<br />

Thuja plicata Donn ex D. Don FAC <strong>West</strong>ern Arborvitae<br />

Tiarella trifoliata L. FAC Three‐Leaf Foamflower<br />

Tilia americana L. FACU American Basswood<br />

Tithonia thurberi Gray FACW Arizona Sunflower‐Weed<br />

Tolmiea menziesii (Pursh) Torr. & Gray FACW Piggyback‐<strong>Plant</strong><br />

Torreyochloa erecta (A.S. Hitchc.) Church OBL Spiked False Manna Grass<br />

Torreyochloa pallida (Torr.) Church OBL Pale False Manna Grass<br />

Toxicodendron radicans (L.) Kuntze FAC Eastern Poison‐Ivy<br />

Toxicodendron rydbergii (Small ex Rydb.) Greene FACU <strong>West</strong>ern Poison‐Ivy<br />

Toxicoscordion micranthus (Eastw.) Heller OBL Small‐Flower Poison Camas<br />

Toxicoscordion venenosum (S. Wats.) Rydb. FACU Meadow Poison Camas<br />

Tradescantia fluminensis Vell. FAC Small‐Leaf Wandering‐Jew<br />

Tradescantia occidentalis (Britt.) Smyth FACU Prairie Spiderwort<br />

Tradescantia ohiensis Raf. FACW Bluejacket<br />

Tradescantia wrightii Rose & Bush FACW Wright's Spiderwort<br />

Trautvetteria caroliniensis (Walt.) Vail FACW Carolina Tassel‐Rue<br />

Triadica sebifera (L.) Small FAC Chinese Tallowtree<br />

Trian<strong>the</strong>ma portulacastrum L. FAC Desert Horse‐Purslane<br />

Trichloris crinita (Lag.) Parodi FACU False Rhodes Grass<br />

Trichocoronis wrightii (Torr. & Gray) Gray FACW Limestone Bugheal<br />

Trichophorum caespitosum (L.) Hartman OBL Tufted Leafless‐Bulrush<br />

Trichophorum clementis (M.E. Jones) S.G. Sm. FAC Yosemite Leafless‐Bulrush<br />

Trichophorum pumilum (Vahl) Schinz & Thellung FACW Rolland's Leafless‐Bulrush<br />

Trichostema austromontanum F.H. Lewis OBL San Jacinto Bluecurls<br />

Trichostema lanceolatum Benth. FACU Vinegar‐Weed<br />

Trichostema micranthum Gray FAC Small‐Flower Bluecurls<br />

Tridens albescens (Vasey) Woot. & Standl. FACU White Fluff Grass<br />

Tridens muticus (Torr.) Nash FAC Awnless Fluff Grass<br />

Trientalis borealis Raf. FAC Maystar<br />

Trientalis europaea L. FAC Arctic Starflower<br />

Trifolium albopurpureum Torr. & Gray FACU Rancheria Clover<br />

Trifolium amabile Kunth OBL Aztec Clover<br />

Trifolium amoenum Greene FACW Showy Indian Clover<br />

Trifolium barbigerum Torr. FACW Bearded Clover<br />

Trifolium beckwithii Brewer ex S. Wats. FAC Plumas Clover<br />

Trifolium bolanderi Gray OBL Parasol Clover<br />

Trifolium cyathiferum Lindl. FAC Bowl Clover<br />

Trifolium depauperatum Desv. FAC Balloon Sack Clover<br />

Trifolium douglasii House FACW Douglas' Clover<br />

Trifolium eriocephalum Nutt. FAC Woolly‐Head Clover<br />

Trifolium fragiferum L. FACU Strawberry‐Head Clover<br />

Trifolium fucatum Lindl. FACU Sour Clover<br />

Trifolium haydenii Porter FACU Hayden's Clover<br />

Trifolium howellii S. Wats. FACW Canyon Clover<br />

Trifolium hybridum L. FAC Alsike Clover<br />

Trifolium kingii S. Wats. FAC King's Clover

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Trifolium longipes Nutt. FACW Long‐Stalk Clover<br />

Trifolium macrocephalum (Pursh) Poir. FACU Large‐Head Clover<br />

Trifolium microcephalum Pursh FAC Small‐Head Clover<br />

Trifolium monanthum Gray FAC Mountain Carpet Clover<br />

Trifolium mucronatum Willd. ex Spreng. FACW Cusp Clover<br />

Trifolium neurophyllum Greene FACW White Mountain Clover<br />

Trifolium obtusiflorum Hook. f. FAC Clammy Clover<br />

Trifolium parryi Gray FAC Parry's Clover<br />

Trifolium pinetorum Greene FACW Pinewoods Clover<br />

Trifolium polyodon Greene FACW Pacific Grove Clover<br />

Trifolium pratense L. FACU Red Clover<br />

Trifolium productum Greene FAC Shasta Clover<br />

Trifolium repens L. FACU White Clover<br />

Trifolium variegatum Nutt. FAC White‐Tip Clover<br />

Trifolium willdenowii Spreng. FACW Springbank Clover<br />

Trifolium wormskioldii Lehm. FACW Cow Clover<br />

Triglochin concinna Burtt‐Davy OBL Slender Arrow‐Grass<br />

Triglochin maritima L. OBL Seaside Arrow‐Grass<br />

Triglochin palustris L. OBL Marsh Arrow‐Grass<br />

Triglochin striata Ruiz & Pavón OBL Three‐Rib Arrow‐Grass<br />

Trillium albidum J.D. Freeman FACU Giant White Wakerobin<br />

Trillium ovatum Pursh FACU <strong>West</strong>ern Wakerobin<br />

Triodanis perfoliata (L.) Nieuwl. FACU Clasping‐Leaf Venus'‐Looking‐Glass<br />

Tripleurospermum maritimum (L.) W.D.J. Koch FACU False Mayweed<br />

Tripsacum dactyloides (L.) L. FAC Eastern Mock Grama<br />

Trisetum cernuum Trin. FACU Tall False Oat<br />

Trisetum orthochaetum A.S. Hitchc. FACW Bitterroot False Oat<br />

Trisetum spicatum (L.) Richter FACU Narrow False Oat<br />

Triteleia hyacinthina (Lindl.) Greene FAC Fool's‐Onion<br />

Triteleia ixioides (Ait. f.) Greene FAC Prettyface<br />

Triteleia peduncularis Lindl. FACW Long‐Ray Triplet‐Lily<br />

Trollius laxus Salisb. OBL American Globeflower<br />

Tsuga heterophylla (Raf.) Sarg. FACU <strong>West</strong>ern Hemlock<br />

Tsuga mertensiana (Bong.) Carr. FACU Mountain Hemlock<br />

Tuctoria greenei (Vasey) J. Reeder OBL Awnless Spiral Grass<br />

Tuctoria mucronata (Crampton) J. Reeder OBL Prickly Spiral Grass<br />

Typha angustifolia L. OBL Narrow‐Leaf Cat‐Tail<br />

Typha domingensis Pers. OBL Sou<strong>the</strong>rn Cat‐Tail<br />

Typha latifolia L. OBL Broad‐Leaf Cat‐Tail<br />

Typha X glauca Godr. (pro sp.) OBL<br />

Ulmus americana L. FAC American Elm<br />

Ulmus rubra Muhl. FAC Slippery Elm<br />

Umbellularia cali<strong>for</strong>nica (Hook. & Arn.) Nutt. FAC Cali<strong>for</strong>nia‐Laurel<br />

Urochloa panicoides Beauv. FACU Panic Liverseed Grass<br />

Urochloa platyphylla (Munro ex Wright) R. Webster FAC Broad‐Leaf Liverseed Grass<br />

Urtica dioica L. FAC Stinging Nettle<br />

Utricularia gibba L. OBL Humped Bladderwort

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Utricularia intermedia Hayne OBL Flat‐Leaf Bladderwort<br />

Utricularia macrorhiza Le Conte OBL Greater Bladderwort<br />

Utricularia minor L. OBL Lesser Bladderwort<br />

Utricularia ochroleuca R.W. Hartman OBL Dwarf Bladderwort<br />

Utricularia subulata L. OBL Zigzag Bladderwort<br />

Vaccaria hispanica (P. Mill.) Rauschert FACU Cowcockle<br />

Vaccinium alaskaense T.J. Howell FAC Alaska Blueberry<br />

Vaccinium caespitosum Michx. FAC Dwarf Blueberry<br />

Vaccinium macrocarpon Ait. OBL Large Cranberry<br />

Vaccinium membranaceum Dougl. ex Torr. FACU Square‐Twig Blueberry<br />

Vaccinium myrtilloides Michx. FACU Velvet‐Leaf Blueberry<br />

Vaccinium myrtillus L. FACU Whortle‐Berry<br />

Vaccinium oxycoccos L. OBL Small Cranberry<br />

Vaccinium parvifolium Sm. FAC Red Blueberry<br />

Vaccinium scoparium Leib. ex Coville FACU Grouseberry<br />

Vaccinium uliginosum L. FACW Alpine Blueberry<br />

Vahlodea atropurpurea (Wahlenb.) Fries ex Hartman FACW Arctic‐Hair Grass<br />

Valeriana acutiloba Rydb. FACU Cordilleran Valerian<br />

Valeriana dioica L. FACW Marsh Valerian<br />

Valeriana edulis Nutt. ex Torr. & Gray FAC Tobacco‐Root<br />

Valeriana occidentalis Heller FAC Small‐Flower Valerian<br />

Valeriana scouleri Rydb. FAC Scouler's Valerian<br />

Valeriana sitchensis Bong. FAC Sitka Valerian<br />

Valeriana texana Steyermark OBL Guadalupe Valerian<br />

Valerianella amarella (Lindheimer ex Engelm.) Krok FACU Hairy Cornsalad<br />

Vallisneria americana Michx. OBL American Eel‐Grass<br />

Veratrum cali<strong>for</strong>nicum Dur. FACW Cali<strong>for</strong>nia False Hellebore<br />

Veratrum fimbriatum Gray FACW Fringed False Hellebore<br />

Veratrum viride Ait. FACW American False Hellebore<br />

Verbascum thapsus L. FACU Great Mullein<br />

Verbena bonariensis L. FACW Purple‐Top Vervain<br />

Verbena bracteata Cav. ex Lag. & Rodr. FAC Carpet Vervain<br />

Verbena cali<strong>for</strong>nica Moldenke FACW Red Hills Vervain<br />

Verbena carolina L. FAC Carolina Vervain<br />

Verbena hastata L. FAC Simpler's‐Joy<br />

Verbena lasiostachys Link FAC <strong>West</strong>ern Vervain<br />

Verbena macdougalii Heller FACU New Mexico Vervain<br />

Verbena officinalis L. FACU Herb‐of‐<strong>the</strong>‐Cross<br />

Verbena scabra Vahl OBL Sandpaper Vervain<br />

Verbena urticifolia L. FAC White Vervain<br />

Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray FACU Golden Crownbeard<br />

Vernonia marginata (Torr.) Raf. FACU Plains Ironweed<br />

Vernonia missurica Raf. FACW Missouri Ironweed<br />

Vernonia noveboracensis (L.) Michx. FAC New York Ironweed<br />

Veronica americana Schwein. ex Benth. OBL American‐Brooklime<br />

Veronica anagallis‐aquatica L. OBL Blue Water Speedwell<br />

Veronica arvensis L. FACU Corn Speedwell

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Veronica beccabunga L. OBL European Speedwell<br />

Veronica chamaedrys L. FACU Germander Speedwell<br />

Veronica cusickii Gray FAC Cusick's Speedwell<br />

Veronica peregrina L. OBL Neckweed<br />

Veronica scutellata L. OBL Grass‐Leaf Speedwell<br />

Veronica serpyllifolia L. FAC Thyme‐Leaf Speedwell<br />

Veronica wormskjoldii Roemer & J.A. Schultes FACW American Alpine Speedwell<br />

Vesicarpa potentilloides (Gray) Rydb. FAC False Chicken‐Sage<br />

Viburnum edule (Michx.) Raf. FACW Squashberry<br />

Viburnum lentago L. FAC Nanny‐Berry<br />

Viburnum opulus L. FACW Highbush‐Cranberry<br />

Viburnum rufidulum Raf. FACU Rusty Blackhaw<br />

Vicia americana Muhl. ex Willd. FAC American Purple Vetch<br />

Vicia nigricans Hook. & Arn. FACU Black Vetch<br />

Vicia sativa L. FACU Garden Vetch<br />

Viola adunca Sm. FAC Hook‐Spur Violet<br />

Viola bicolor Pursh FAC Field Pansy<br />

Viola canadensis L. FACU Canadian White Violet<br />

Viola epipsila Ledeb. FACW Dwarf Marsh Violet<br />

Viola glabella Nutt. FAC Pioneer Violet<br />

Viola hallii Gray FAC Oregon Violet<br />

Viola langsdorfii Fisch. ex Gingins FACW Aleutian Violet<br />

Viola macloskeyi Lloyd OBL Smooth White Violet<br />

Viola missouriensis Greene FACW Missouri Violet<br />

Viola nephrophylla Greene FACW Nor<strong>the</strong>rn Bog Violet<br />

Viola palustris L. OBL Alpine‐Marsh Violet<br />

Viola pedatifida G. Don FACU Crow‐Foot Violet<br />

Viola renifolia Gray FACW Kidney‐Leaf White Violet<br />

Viola septentrionalis Greene FACU Nor<strong>the</strong>rn Woodland Violet<br />

Viola sororia Willd. FAC Hooded Blue Violet<br />

Viola X viarum Pollard FACU<br />

Vitis aestivalis Michx. FACU Summer Grape<br />

Vitis arizonica Engelm. FACU Canyon Grape<br />

Vitis cali<strong>for</strong>nica Benth. FACU Cali<strong>for</strong>nia Grape<br />

Vitis girdiana Munson FAC Valley Grape<br />

Vitis labrusca L. FACU Fox Grape<br />

Vitis riparia Michx. FAC River‐Bank Grape<br />

Vitis rupestris Scheele FACU Rock Grape<br />

Vulpia bromoides (L.) S.F. Gray FAC Brome Six‐Weeks Grass<br />

Vulpia myuros (L.) K.C. Gmel. FACU Rat‐Tail Six‐Weeks Grass<br />

Washingtonia filifera (L. Linden) H. Wendl. FACW Cali<strong>for</strong>nia Fan Palm<br />

Wislizenia refracta Engelm. FACU Spectacle‐Fruit<br />

Wolffia arrhiza (L.) Horkel ex C.F.H. Wimmer OBL Spotless Watermeal<br />

Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & OBL Nor<strong>the</strong>rn Watermeal<br />

Wolffia brasiliensis Weddell OBL Brazilian Watermeal<br />

Wolffia columbiana Karst. OBL Columbian Watermeal<br />

Wolffia globosa (Roxb.) den Hartog & Plas OBL Asian Watermeal

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Wolffiella lingulata (Hegelm.) Hegelm. OBL Tongue‐Shape Bogmat<br />

Wolffiella oblonga (Phil.) Hegelm. OBL Saber Bogmat<br />

Woodwardia fimbriata Sm. FACW Giant Chain Fern<br />

Woodwardia radicans (L.) J. Sm. OBL Rooting Chain Fern<br />

Wyethia amplexicaulis (Nutt.) Nutt. FAC Nor<strong>the</strong>rn Mule's‐Ears<br />

Wyethia angustifolia (DC.) Nutt. FACU Cali<strong>for</strong>nia‐Compassplant<br />

Wyethia helianthoides Nutt. FACW White‐Ray Mule's‐Ears<br />

X Elyhordeum macounii (Vasey) Barkworth & D.R. Dewey FACU<br />

Xanthium spinosum L. FACU Spiny Cockleburr<br />

Xanthium strumarium L. FAC Rough Cockleburr<br />

Xanthocephalum gymnospermoide(Gray) Benth. & Hook. f. FAC San Pedro Matchweed<br />

Xanthocyparis nootkatensis (D. Don) Farjon & D.K. Harder FAC Alaska‐Cedar<br />

Yabea microcarpa (Hook. & Arn.) K.‐Pol. FACU False Hedge‐Parsley<br />

Youngia japonica (L.) DC. FACU Oriental False Hawk's‐Beard<br />

Zannichellia palustris L. OBL Horned‐Pondweed<br />

Zantedeschia aethiopica (L.) Spreng. OBL Calla‐Lily<br />

Zizania palustris L. OBL Nor<strong>the</strong>rn Wild Rice<br />

Zizia aptera (Gray) Fern. FAC Heart‐Leaf Alexanders<br />

Zostera marina L. OBL Seawrack<br />

Zoysia matrella (L.) Merr. FACU Manila Temple Grass